andre/30-seconds-of-code
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Travis build: 1666

Browse Source
This commit is contained in:
30secondsofcode
2019-12-31 09:38:53 +00:00
parent 21b0ab5c65
commit 2344523e5b
15 changed files with 93 additions and 97 deletions
Download Patch File Download Diff File Expand all files Collapse all files

22
snippet_data/snippetList.json
View File

@ -835,7 +835,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5ab25ab96afd4f1f481fc318b5b290ba8c57a468ef6bca0ca200cfb7fcf3ba9f" "hash": "77a01af8797ecbe71b9c9412d21c144c03a46a49dd3d0e7d869c3df38b39b2b4"
} }
}, },
{ {
@ -898,7 +898,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "7a228b650ff668f697e524e0d27ebeff1bfa35e04333b6cd5e742ff63bfea25d" "hash": "6fa14364405f7b99aa49c2157bdc08c02b4ce2f288db29a4348a6983460933c7"
} }
}, },
{ {
@ -1037,7 +1037,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5f38360819f9225b887a94221bfee1a80f1bcc224a364440b3388f60491b03ba" "hash": "bdc202436bee09f06a353d31841c6cfff33e8efead34c6c56ae1a1413284976d"
} }
}, },
{ {
@ -1273,7 +1273,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "55b1ce0a892110d792a9487e40331774015525479faa2b8961f6c2ea6291c27b" "hash": "6e9710c9117f500e74e65c0ee36b39fb80bd55537fa5ff9c4b1136b2667096f2"
} }
}, },
{ {
@ -1678,7 +1678,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "16c3b724b653dcb31f3e59f1664a59951abb15a93eb3697cade4d3ae0e63c532" "hash": "f9e6687cc28cd80e68f7a6776f893c7478aaa942710e0eb7144f105eba574a54"
} }
}, },
{ {
@ -2864,7 +2864,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "362fddaa6244404741e84bca6fc442a101fdb642af53b299e8b9994d0d7162d8" "hash": "3db3faac666ee61ab86c70766d2ab5d1293ffd818da87edb971bfff7a366364a"
} }
}, },
{ {
@ -3425,7 +3425,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "b031c3387ef66411ab5d295788eac4247ada5b4b068dda90603d3c973890bc26" "hash": "e8f820ce6da97eabde082ffb829c9fb700e85efc79bdebe883c67237269e3f52"
} }
}, },
{ {
@ -3774,7 +3774,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "17bcf3f13980b7f804d9f0fe274324b2a35ab7d479c03d77322dabba81e1a34a" "hash": "7ccbf66d8d55c60bcf12baa980cf32d67a4ba567894d59e2d798c9af792424ff"
} }
}, },
{ {
@ -4171,7 +4171,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "069472d018c3102412dafc2ae8ec6e9396e53c01d0073079f2e3f1ac3c99b6e9" "hash": "c1542907e6295eb81df918174c247a65d73c8daccc56769f2eb32d609b7846fc"
} }
}, },
{ {
@ -4487,7 +4487,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "24b93b68a59b49f245590930fed6fb82e286ce09f90e292466cde63c1784c347" "hash": "6dd4c6a51d2c80fa4768c95ae01c16a8359c4140bcad28c7fde0cecd72d7d3e2"
} }
}, },
{ {
@ -5483,7 +5483,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "6bba5ca7427489cdf18476542772743ae2d5f4eccb42ff93ee61b9f8ba1f55d6" "hash": "94d3b2ea296a94907be873c19381a525eeb96676cd52cb1baf1bd76bc22971a6"
} }
}, },
{ {

42
snippet_data/snippets.json
View File

@ -1361,7 +1361,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5ab25ab96afd4f1f481fc318b5b290ba8c57a468ef6bca0ca200cfb7fcf3ba9f", "hash": "77a01af8797ecbe71b9c9412d21c144c03a46a49dd3d0e7d869c3df38b39b2b4",
"firstSeen": "1516733326", "firstSeen": "1516733326",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 54, "updateCount": 54,
@ -1464,7 +1464,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "7a228b650ff668f697e524e0d27ebeff1bfa35e04333b6cd5e742ff63bfea25d", "hash": "6fa14364405f7b99aa49c2157bdc08c02b4ce2f288db29a4348a6983460933c7",
"firstSeen": "1544374334\n1543497773", "firstSeen": "1544374334\n1543497773",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 68, "updateCount": 68,
@ -1693,7 +1693,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "5f38360819f9225b887a94221bfee1a80f1bcc224a364440b3388f60491b03ba", "hash": "bdc202436bee09f06a353d31841c6cfff33e8efead34c6c56ae1a1413284976d",
"firstSeen": "1531080384", "firstSeen": "1531080384",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 88, "updateCount": 88,
@ -2079,7 +2079,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "55b1ce0a892110d792a9487e40331774015525479faa2b8961f6c2ea6291c27b", "hash": "6e9710c9117f500e74e65c0ee36b39fb80bd55537fa5ff9c4b1136b2667096f2",
"firstSeen": "1512650493", "firstSeen": "1512650493",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 93, "updateCount": 93,
@ -2744,7 +2744,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "16c3b724b653dcb31f3e59f1664a59951abb15a93eb3697cade4d3ae0e63c532", "hash": "f9e6687cc28cd80e68f7a6776f893c7478aaa942710e0eb7144f105eba574a54",
"firstSeen": "1515856488", "firstSeen": "1515856488",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 50, "updateCount": 50,
@ -4670,7 +4670,7 @@
"fileName": "join.md", "fileName": "join.md",
"text": "Joins all elements of an array into a string and returns this string.\nUses a separator and an end separator.\n\nUse `Array.prototype.reduce()` to combine elements into a string.\nOmit the second argument, `separator`, to use a default separator of `','`.\nOmit the third argument, `end`, to use the same value as `separator` by default.\n\n", "text": "Joins all elements of an array into a string and returns this string.\nUses a separator and an end separator.\n\nUse `Array.prototype.reduce()` to combine elements into a string.\nOmit the second argument, `separator`, to use a default separator of `','`.\nOmit the third argument, `end`, to use the same value as `separator` by default.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const join = (arr, separator = ',', end = separator) =>\n arr.reduce(\n (acc, val, i) =>\n i === arr.length - 2\n ? acc + val + end\n : i === arr.length - 1\n ? acc + val\n : acc + val + separator,\n ''\n );", "es6": "const join = (arr, separator = ',', end = separator) =>\n arr.reduce(\n (acc, val, i) =>\n i === arr.length - 2\n ? acc + val + end\n : i === arr.length - 1\n ? acc + val\n : acc + val + separator,\n ''\n );",
"es5": "var join = function join(arr) {\n var separator = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ',';\n var end = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : separator;\n return arr.reduce(function (acc, val, i) {\n return i === arr.length - 2 ? acc + val + end : i === arr.length - 1 ? acc + val : acc + val + separator;\n }, '');\n};", "es5": "var join = function join(arr) {\n var separator = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : ',';\n var end = arguments.length > 2 && arguments[2] !== undefined ? arguments[2] : separator;\n return arr.reduce(function (acc, val, i) {\n return i === arr.length - 2 ? acc + val + end : i === arr.length - 1 ? acc + val : acc + val + separator;\n }, '');\n};",
"example": "join(['pen', 'pineapple', 'apple', 'pen'], ',', '&'); // \"pen,pineapple,apple&pen\"\njoin(['pen', 'pineapple', 'apple', 'pen'], ','); // \"pen,pineapple,apple,pen\"\njoin(['pen', 'pineapple', 'apple', 'pen']); // \"pen,pineapple,apple,pen\"" "example": "join(['pen', 'pineapple', 'apple', 'pen'], ',', '&'); // \"pen,pineapple,apple&pen\"\njoin(['pen', 'pineapple', 'apple', 'pen'], ','); // \"pen,pineapple,apple,pen\"\njoin(['pen', 'pineapple', 'apple', 'pen']); // \"pen,pineapple,apple,pen\""
}, },
@ -4680,7 +4680,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "362fddaa6244404741e84bca6fc442a101fdb642af53b299e8b9994d0d7162d8", "hash": "3db3faac666ee61ab86c70766d2ab5d1293ffd818da87edb971bfff7a366364a",
"firstSeen": "1514801920", "firstSeen": "1514801920",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 56, "updateCount": 56,
@ -5579,7 +5579,7 @@
"fileName": "objectToQueryString.md", "fileName": "objectToQueryString.md",
"text": "Returns a query string generated from the key-value pairs of the given object.\n\nUse `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.\nDetermine the `symbol` to be either `?` or `&` based on the `length` of `queryString` and concatenate `val` to `queryString` only if it's a string.\nReturn the `queryString` or an empty string when the `queryParameters` are falsy.\n\n", "text": "Returns a query string generated from the key-value pairs of the given object.\n\nUse `Array.prototype.reduce()` on `Object.entries(queryParameters)` to create the query string.\nDetermine the `symbol` to be either `?` or `&` based on the `length` of `queryString` and concatenate `val` to `queryString` only if it's a string.\nReturn the `queryString` or an empty string when the `queryParameters` are falsy.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const objectToQueryString = queryParameters => {\n return queryParameters\n ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {\n const symbol = queryString.length === 0 ? '?' : '&';\n queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : '';\n return queryString;\n }, '')\n : '';\n};", "es6": "const objectToQueryString = queryParameters => {\n return queryParameters\n ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {\n const symbol = queryString.length === 0 ? '?' : '&';\n queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : '';\n return queryString;\n }, '')\n : '';\n};",
"es5": "function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); }\n\nfunction _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === \"[object Arguments]\")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nvar objectToQueryString = function objectToQueryString(queryParameters) {\n return queryParameters ? Object.entries(queryParameters).reduce(function (queryString, _ref, index) {\n var _ref2 = _slicedToArray(_ref, 2),\n key = _ref2[0],\n val = _ref2[1];\n\n var symbol = queryString.length === 0 ? '?' : '&';\n queryString += typeof val === 'string' ? \"\".concat(symbol).concat(key, \"=\").concat(val) : '';\n return queryString;\n }, '') : '';\n};", "es5": "function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }\n\nfunction _nonIterableRest() { throw new TypeError(\"Invalid attempt to destructure non-iterable instance\"); }\n\nfunction _iterableToArrayLimit(arr, i) { if (!(Symbol.iterator in Object(arr) || Object.prototype.toString.call(arr) === \"[object Arguments]\")) { return; } var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i[\"return\"] != null) _i[\"return\"](); } finally { if (_d) throw _e; } } return _arr; }\n\nfunction _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }\n\nvar objectToQueryString = function objectToQueryString(queryParameters) {\n return queryParameters ? Object.entries(queryParameters).reduce(function (queryString, _ref, index) {\n var _ref2 = _slicedToArray(_ref, 2),\n key = _ref2[0],\n val = _ref2[1];\n\n var symbol = queryString.length === 0 ? '?' : '&';\n queryString += typeof val === 'string' ? \"\".concat(symbol).concat(key, \"=\").concat(val) : '';\n return queryString;\n }, '') : '';\n};",
"example": "objectToQueryString({ page: '1', size: '2kg', key: undefined }); // '?page=1&size=2kg'" "example": "objectToQueryString({ page: '1', size: '2kg', key: undefined }); // '?page=1&size=2kg'"
}, },
@ -5591,7 +5591,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "b031c3387ef66411ab5d295788eac4247ada5b4b068dda90603d3c973890bc26", "hash": "e8f820ce6da97eabde082ffb829c9fb700e85efc79bdebe883c67237269e3f52",
"firstSeen": "1570824965", "firstSeen": "1570824965",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 23, "updateCount": 23,
@ -6150,7 +6150,7 @@
"codeBlocks": { "codeBlocks": {
"es6": "const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Promise.resolve(arg));", "es6": "const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Promise.resolve(arg));",
"es5": "var pipeAsyncFunctions = function pipeAsyncFunctions() {\n for (var _len = arguments.length, fns = new Array(_len), _key = 0; _key < _len; _key++) {\n fns[_key] = arguments[_key];\n }\n\n return function (arg) {\n return fns.reduce(function (p, f) {\n return p.then(f);\n }, Promise.resolve(arg));\n };\n};", "es5": "var pipeAsyncFunctions = function pipeAsyncFunctions() {\n for (var _len = arguments.length, fns = new Array(_len), _key = 0; _key < _len; _key++) {\n fns[_key] = arguments[_key];\n }\n\n return function (arg) {\n return fns.reduce(function (p, f) {\n return p.then(f);\n }, Promise.resolve(arg));\n };\n};",
"example": "const sum = pipeAsyncFunctions(\n x => x + 1,\n x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),\n x => x + 3,\n async x => (await x) + 4\n);\n(async() => {\n console.log(await sum(5)); // 15 (after one second)\n})();" "example": "const sum = pipeAsyncFunctions(\n x => x + 1,\n x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),\n x => x + 3,\n async x => (await x) + 4\n);\n(async () => {\n console.log(await sum(5)); // 15 (after one second)\n})();"
}, },
"tags": [ "tags": [
"adapter", "adapter",
@ -6160,7 +6160,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "17bcf3f13980b7f804d9f0fe274324b2a35ab7d479c03d77322dabba81e1a34a", "hash": "7ccbf66d8d55c60bcf12baa980cf32d67a4ba567894d59e2d798c9af792424ff",
"firstSeen": "1517069864", "firstSeen": "1517069864",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 80, "updateCount": 80,
@ -6797,7 +6797,7 @@
"fileName": "remove.md", "fileName": "remove.md",
"text": "Removes elements from an array for which the given function returns `false`.\n\nUse `Array.prototype.filter()` to find array elements that return truthy values and `Array.prototype.reduce()` to remove elements using `Array.prototype.splice()`.\nThe `func` is invoked with three arguments (`value, index, array`).\n\n", "text": "Removes elements from an array for which the given function returns `false`.\n\nUse `Array.prototype.filter()` to find array elements that return truthy values and `Array.prototype.reduce()` to remove elements using `Array.prototype.splice()`.\nThe `func` is invoked with three arguments (`value, index, array`).\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const remove = (arr, func) =>\n Array.isArray(arr)\n ? arr.filter(func).reduce((acc, val) => {\n arr.splice(arr.indexOf(val), 1);\n return acc.concat(val);\n }, [])\n : [];", "es6": "const remove = (arr, func) =>\n Array.isArray(arr)\n ? arr.filter(func).reduce((acc, val) => {\n arr.splice(arr.indexOf(val), 1);\n return acc.concat(val);\n }, [])\n : [];",
"es5": "var remove = function remove(arr, func) {\n return Array.isArray(arr) ? arr.filter(func).reduce(function (acc, val) {\n arr.splice(arr.indexOf(val), 1);\n return acc.concat(val);\n }, []) : [];\n};", "es5": "var remove = function remove(arr, func) {\n return Array.isArray(arr) ? arr.filter(func).reduce(function (acc, val) {\n arr.splice(arr.indexOf(val), 1);\n return acc.concat(val);\n }, []) : [];\n};",
"example": "remove([1, 2, 3, 4], n => n % 2 === 0); // [2, 4]" "example": "remove([1, 2, 3, 4], n => n % 2 === 0); // [2, 4]"
}, },
@ -6807,7 +6807,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "069472d018c3102412dafc2ae8ec6e9396e53c01d0073079f2e3f1ac3c99b6e9", "hash": "c1542907e6295eb81df918174c247a65d73c8daccc56769f2eb32d609b7846fc",
"firstSeen": "1513521691", "firstSeen": "1513521691",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 77, "updateCount": 77,
@ -7311,7 +7311,7 @@
"fileName": "size.md", "fileName": "size.md",
"text": "Gets the size of an array, object or string.\n\nGet type of `val` (`array`, `object` or `string`). \nUse `length` property for arrays.\nUse `length` or `size` value if available or number of keys for objects.\nUse `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `val` for strings.\nSplit strings into array of characters with `split('')` and return its length.\n\n", "text": "Gets the size of an array, object or string.\n\nGet type of `val` (`array`, `object` or `string`). \nUse `length` property for arrays.\nUse `length` or `size` value if available or number of keys for objects.\nUse `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `val` for strings.\nSplit strings into array of characters with `split('')` and return its length.\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const size = val =>\n Array.isArray(val)\n ? val.length\n : val && typeof val === 'object'\n ? val.size || val.length || Object.keys(val).length\n : typeof val === 'string'\n ? new Blob([val]).size\n : 0;", "es6": "const size = val =>\n Array.isArray(val)\n ? val.length\n : val && typeof val === 'object'\n ? val.size || val.length || Object.keys(val).length\n : typeof val === 'string'\n ? new Blob([val]).size\n : 0;",
"es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar size = function size(val) {\n return Array.isArray(val) ? val.length : val && _typeof(val) === 'object' ? val.size || val.length || Object.keys(val).length : typeof val === 'string' ? new Blob([val]).size : 0;\n};", "es5": "function _typeof(obj) { if (typeof Symbol === \"function\" && typeof Symbol.iterator === \"symbol\") { _typeof = function _typeof(obj) { return typeof obj; }; } else { _typeof = function _typeof(obj) { return obj && typeof Symbol === \"function\" && obj.constructor === Symbol && obj !== Symbol.prototype ? \"symbol\" : typeof obj; }; } return _typeof(obj); }\n\nvar size = function size(val) {\n return Array.isArray(val) ? val.length : val && _typeof(val) === 'object' ? val.size || val.length || Object.keys(val).length : typeof val === 'string' ? new Blob([val]).size : 0;\n};",
"example": "size([1, 2, 3, 4, 5]); // 5\nsize('size'); // 4\nsize({ one: 1, two: 2, three: 3 }); // 3" "example": "size([1, 2, 3, 4, 5]); // 5\nsize('size'); // 4\nsize({ one: 1, two: 2, three: 3 }); // 3"
}, },
@ -7323,7 +7323,7 @@
] ]
}, },
"meta": { "meta": {
"hash": "24b93b68a59b49f245590930fed6fb82e286ce09f90e292466cde63c1784c347", "hash": "6dd4c6a51d2c80fa4768c95ae01c16a8359c4140bcad28c7fde0cecd72d7d3e2",
"firstSeen": "1514645161", "firstSeen": "1514645161",
"lastUpdated": "1577431401", "lastUpdated": "1577431401",
"updateCount": 22, "updateCount": 22,
@ -8938,7 +8938,7 @@
"fileName": "weightedSample.md", "fileName": "weightedSample.md",
"text": "Returns a random element from an array, using the provided `weights` as the probabilities for each element.\n\nUse `Array.prototype.reduce()` to create an array of partial sums for each value in `weights`.\nUse `Math.random()` to generate a random number and `Array.prototype.findIndex()` to find the correct index based on the array previously produced.\nFinally, return the element of `arr` with the produced index.\n\n\n", "text": "Returns a random element from an array, using the provided `weights` as the probabilities for each element.\n\nUse `Array.prototype.reduce()` to create an array of partial sums for each value in `weights`.\nUse `Math.random()` to generate a random number and `Array.prototype.findIndex()` to find the correct index based on the array previously produced.\nFinally, return the element of `arr` with the produced index.\n\n\n",
"codeBlocks": { "codeBlocks": {
"es6": "const weightedSample = (arr, weights) => {\n let roll = Math.random();\n return arr[\n weights\n .reduce((acc, w, i) =>\n i === 0 ? [w] : [...acc, acc[acc.length - 1] + w],\n []\n )\n .findIndex((v, i, s) =>\n roll >= (i === 0 ? 0 : s[i - 1]) && roll < v\n )\n ];\n}", "es6": "const weightedSample = (arr, weights) => {\n let roll = Math.random();\n return arr[\n weights\n .reduce((acc, w, i) => (i === 0 ? [w] : [...acc, acc[acc.length - 1] + w]), [])\n .findIndex((v, i, s) => roll >= (i === 0 ? 0 : s[i - 1]) && roll < v)\n ];\n};",
"es5": "function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { throw new TypeError(\"Invalid attempt to spread non-iterable instance\"); }\n\nfunction _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === \"[object Arguments]\") return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }\n\nvar weightedSample = function weightedSample(arr, weights) {\n var roll = Math.random();\n return arr[weights.reduce(function (acc, w, i) {\n return i === 0 ? [w] : [].concat(_toConsumableArray(acc), [acc[acc.length - 1] + w]);\n }, []).findIndex(function (v, i, s) {\n return roll >= (i === 0 ? 0 : s[i - 1]) && roll < v;\n })];\n};", "es5": "function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _nonIterableSpread(); }\n\nfunction _nonIterableSpread() { throw new TypeError(\"Invalid attempt to spread non-iterable instance\"); }\n\nfunction _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === \"[object Arguments]\") return Array.from(iter); }\n\nfunction _arrayWithoutHoles(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = new Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } }\n\nvar weightedSample = function weightedSample(arr, weights) {\n var roll = Math.random();\n return arr[weights.reduce(function (acc, w, i) {\n return i === 0 ? [w] : [].concat(_toConsumableArray(acc), [acc[acc.length - 1] + w]);\n }, []).findIndex(function (v, i, s) {\n return roll >= (i === 0 ? 0 : s[i - 1]) && roll < v;\n })];\n};",
"example": "weightedSample([3, 7, 9, 11], [0.1, 0.2, 0.6, 0.1]); // 9" "example": "weightedSample([3, 7, 9, 11], [0.1, 0.2, 0.6, 0.1]); // 9"
}, },
@ -8949,11 +8949,11 @@
] ]
}, },
"meta": { "meta": {
"hash": "6bba5ca7427489cdf18476542772743ae2d5f4eccb42ff93ee61b9f8ba1f55d6", "hash": "94d3b2ea296a94907be873c19381a525eeb96676cd52cb1baf1bd76bc22971a6",
"firstSeen": "", "firstSeen": "1577784866",
"lastUpdated": "", "lastUpdated": "1577784866",
"updateCount": 1, "updateCount": 2,
"authorCount": 1 "authorCount": 2
} }
}, },
{ {

1
snippets/deepClone.md
View File

@ -11,7 +11,6 @@ Use `Object.assign()` and an empty object (`{}`) to create a shallow clone of th
Use `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned. Use `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.
```js ```js
const deepClone = obj => { const deepClone = obj => {
if (obj === null) return null; if (obj === null) return null;
let clone = Object.assign({}, obj); let clone = Object.assign({}, obj);

1
snippets/deepMapKeys.md
View File

@ -10,7 +10,6 @@ Use `Object.keys(obj)` to iterate over the object's keys.
Use `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`. Use `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.
```js ```js
const deepMapKeys = (obj, f) => const deepMapKeys = (obj, f) =>
Array.isArray(obj) Array.isArray(obj)
? obj.map(val => deepMapKeys(val, f)) ? obj.map(val => deepMapKeys(val, f))

1
snippets/dig.md
View File

@ -9,7 +9,6 @@ Use the `in` operator to check if `target` exists in `obj`.
If found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found. If found, return the value of `obj[target]`, otherwise use `Object.values(obj)` and `Array.prototype.reduce()` to recursively call `dig` on each nested object until the first matching key/value pair is found.
```js ```js
const dig = (obj, target) => const dig = (obj, target) =>
target in obj target in obj
? obj[target] ? obj[target]

1
snippets/factorial.md
View File

@ -11,7 +11,6 @@ Otherwise, return the product of `n` and the factorial of `n - 1`.
Throws an exception if `n` is a negative number. Throws an exception if `n` is a negative number.
```js ```js
const factorial = n => const factorial = n =>
n < 0 n < 0
? (() => { ? (() => {

1
snippets/getMeridiemSuffixOfInteger.md
View File

@ -8,7 +8,6 @@ Converts an integer to a suffixed string, adding `am` or `pm` based on its value
Use the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix. Use the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.
```js ```js
const getMeridiemSuffixOfInteger = num => const getMeridiemSuffixOfInteger = num =>
num === 0 || num === 24 num === 0 || num === 24
? 12 + 'am' ? 12 + 'am'

5
snippets/join.md
View File

@ -11,15 +11,14 @@ Omit the second argument, `separator`, to use a default separator of `','`.
Omit the third argument, `end`, to use the same value as `separator` by default. Omit the third argument, `end`, to use the same value as `separator` by default.
```js ```js
const join = (arr, separator = ',', end = separator) => const join = (arr, separator = ',', end = separator) =>
arr.reduce( arr.reduce(
(acc, val, i) => (acc, val, i) =>
i === arr.length - 2 i === arr.length - 2
? acc + val + end ? acc + val + end
: i === arr.length - 1 : i === arr.length - 1
? acc + val ? acc + val
: acc + val + separator, : acc + val + separator,
'' ''
); );
``` ```

9
snippets/objectToQueryString.md
View File

@ -10,14 +10,13 @@ Determine the `symbol` to be either `?` or `&` based on the `length` of `querySt
Return the `queryString` or an empty string when the `queryParameters` are falsy. Return the `queryString` or an empty string when the `queryParameters` are falsy.
```js ```js
const objectToQueryString = queryParameters => { const objectToQueryString = queryParameters => {
return queryParameters return queryParameters
? Object.entries(queryParameters).reduce((queryString, [key, val], index) => { ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {
const symbol = queryString.length === 0 ? '?' : '&'; const symbol = queryString.length === 0 ? '?' : '&';
queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : ''; queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : '';
return queryString; return queryString;
}, '') }, '')
: ''; : '';
}; };
``` ```

3
snippets/pipeAsyncFunctions.md
View File

@ -14,14 +14,13 @@ const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Pr
``` ```
```js ```js
const sum = pipeAsyncFunctions( const sum = pipeAsyncFunctions(
x => x + 1, x => x + 1,
x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)), x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)),
x => x + 3, x => x + 3,
async x => (await x) + 4 async x => (await x) + 4
); );
(async() => { (async () => {
console.log(await sum(5)); // 15 (after one second) console.log(await sum(5)); // 15 (after one second)
})(); })();
``` ```

7
snippets/remove.md
View File

@ -9,12 +9,13 @@ Use `Array.prototype.filter()` to find array elements that return truthy values
The `func` is invoked with three arguments (`value, index, array`). The `func` is invoked with three arguments (`value, index, array`).
```js ```js
const remove = (arr, func) => const remove = (arr, func) =>
Array.isArray(arr) Array.isArray(arr)
? arr.filter(func).reduce((acc, val) => { ? arr.filter(func).reduce((acc, val) => {
arr.splice(arr.indexOf(val), 1); arr.splice(arr.indexOf(val), 1);
return acc.concat(val); return acc.concat(val);
}, []) }, [])
: []; : [];
``` ```

9
snippets/size.md
View File

@ -12,15 +12,14 @@ Use `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API
Split strings into array of characters with `split('')` and return its length. Split strings into array of characters with `split('')` and return its length.
```js ```js
const size = val => const size = val =>
Array.isArray(val) Array.isArray(val)
? val.length ? val.length
: val && typeof val === 'object' : val && typeof val === 'object'
? val.size || val.length || Object.keys(val).length ? val.size || val.length || Object.keys(val).length
: typeof val === 'string' : typeof val === 'string'
? new Blob([val]).size ? new Blob([val]).size
: 0; : 0;
``` ```
```js ```js

11
snippets/weightedSample.md
View File

@ -15,15 +15,10 @@ const weightedSample = (arr, weights) => {
let roll = Math.random(); let roll = Math.random();
return arr[ return arr[
weights weights
.reduce((acc, w, i) => .reduce((acc, w, i) => (i === 0 ? [w] : [...acc, acc[acc.length - 1] + w]), [])
i === 0 ? [w] : [...acc, acc[acc.length - 1] + w], .findIndex((v, i, s) => roll >= (i === 0 ? 0 : s[i - 1]) && roll < v)
[]
)
.findIndex((v, i, s) =>
roll >= (i === 0 ? 0 : s[i - 1]) && roll < v
)
]; ];
} };
``` ```
```js ```js

37
test/_30s.js
View File

@ -656,8 +656,8 @@ const join = (arr, separator = ',', end = separator) =>
i === arr.length - 2 i === arr.length - 2
? acc + val + end ? acc + val + end
: i === arr.length - 1 : i === arr.length - 1
? acc + val ? acc + val
: acc + val + separator, : acc + val + separator,
'' ''
); );
const JSONtoCSV = (arr, columns, delimiter = ',') => const JSONtoCSV = (arr, columns, delimiter = ',') =>
@ -776,10 +776,10 @@ const objectToPairs = obj => Object.keys(obj).map(k => [k, obj[k]]);
const objectToQueryString = queryParameters => { const objectToQueryString = queryParameters => {
return queryParameters return queryParameters
? Object.entries(queryParameters).reduce((queryString, [key, val], index) => { ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {
const symbol = queryString.length === 0 ? '?' : '&'; const symbol = queryString.length === 0 ? '?' : '&';
queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : ''; queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : '';
return queryString; return queryString;
}, '') }, '')
: ''; : '';
}; };
const observeMutations = (element, callback, options) => { const observeMutations = (element, callback, options) => {
@ -1011,9 +1011,9 @@ const reject = (pred, array) => array.filter((...args) => !pred(...args));
const remove = (arr, func) => const remove = (arr, func) =>
Array.isArray(arr) Array.isArray(arr)
? arr.filter(func).reduce((acc, val) => { ? arr.filter(func).reduce((acc, val) => {
arr.splice(arr.indexOf(val), 1); arr.splice(arr.indexOf(val), 1);
return acc.concat(val); return acc.concat(val);
}, []) }, [])
: []; : [];
const removeNonASCII = str => str.replace(/[^\x20-\x7E]/g, ''); const removeNonASCII = str => str.replace(/[^\x20-\x7E]/g, '');
const renameKeys = (keysMap, obj) => const renameKeys = (keysMap, obj) =>
@ -1091,10 +1091,10 @@ const size = val =>
Array.isArray(val) Array.isArray(val)
? val.length ? val.length
: val && typeof val === 'object' : val && typeof val === 'object'
? val.size || val.length || Object.keys(val).length ? val.size || val.length || Object.keys(val).length
: typeof val === 'string' : typeof val === 'string'
? new Blob([val]).size ? new Blob([val]).size
: 0; : 0;
const sleep = ms => new Promise(resolve => setTimeout(resolve, ms)); const sleep = ms => new Promise(resolve => setTimeout(resolve, ms));
const smoothScroll = element => const smoothScroll = element =>
document.querySelector(element).scrollIntoView({ document.querySelector(element).scrollIntoView({
@ -1379,15 +1379,10 @@ const weightedSample = (arr, weights) => {
let roll = Math.random(); let roll = Math.random();
return arr[ return arr[
weights weights
.reduce((acc, w, i) => .reduce((acc, w, i) => (i === 0 ? [w] : [...acc, acc[acc.length - 1] + w]), [])
i === 0 ? [w] : [...acc, acc[acc.length - 1] + w], .findIndex((v, i, s) => roll >= (i === 0 ? 0 : s[i - 1]) && roll < v)
[]
)
.findIndex((v, i, s) =>
roll >= (i === 0 ? 0 : s[i - 1]) && roll < v
)
]; ];
} };
const when = (pred, whenTrue) => x => (pred(x) ? whenTrue(x) : x); const when = (pred, whenTrue) => x => (pred(x) ? whenTrue(x) : x);
const without = (arr, ...args) => arr.filter(v => !args.includes(v)); const without = (arr, ...args) => arr.filter(v => !args.includes(v));
const words = (str, pattern = /[^a-zA-Z-]+/) => str.split(pattern).filter(Boolean); const words = (str, pattern = /[^a-zA-Z-]+/) => str.split(pattern).filter(Boolean);

40
vscode_snippets/snippets.json
View File

@ -1743,8 +1743,8 @@
" i === arr.length - 2", " i === arr.length - 2",
" ? acc + val + end", " ? acc + val + end",
" : i === arr.length - 1", " : i === arr.length - 1",
" ? acc + val", " ? acc + val",
" : acc + val + separator,", " : acc + val + separator,",
" ''", " ''",
" );" " );"
], ],
@ -2073,10 +2073,10 @@
"const objectToQueryString = queryParameters => {", "const objectToQueryString = queryParameters => {",
" return queryParameters", " return queryParameters",
" ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {", " ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => {",
" const symbol = queryString.length === 0 ? '?' : '&';", " const symbol = queryString.length === 0 ? '?' : '&';",
" queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : '';", " queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : '';",
" return queryString;", " return queryString;",
" }, '')", " }, '')",
" : '';", " : '';",
"};" "};"
], ],
@ -2590,9 +2590,9 @@
"const remove = (arr, func) =>", "const remove = (arr, func) =>",
" Array.isArray(arr)", " Array.isArray(arr)",
" ? arr.filter(func).reduce((acc, val) => {", " ? arr.filter(func).reduce((acc, val) => {",
" arr.splice(arr.indexOf(val), 1);", " arr.splice(arr.indexOf(val), 1);",
" return acc.concat(val);", " return acc.concat(val);",
" }, [])", " }, [])",
" : [];" " : [];"
], ],
"description": "Removes elements from an array for which the given function returns `false`.\n\nUse `Array.prototype.filter()` to find array elements that return truthy values and `Array.prototype.reduce()` to remove elements using `Array.prototype.splice()`.\nThe `func` is invoked with three arguments (`value, index, array`).\n" "description": "Removes elements from an array for which the given function returns `false`.\n\nUse `Array.prototype.filter()` to find array elements that return truthy values and `Array.prototype.reduce()` to remove elements using `Array.prototype.splice()`.\nThe `func` is invoked with three arguments (`value, index, array`).\n"
@ -2790,10 +2790,10 @@
" Array.isArray(val)", " Array.isArray(val)",
" ? val.length", " ? val.length",
" : val && typeof val === 'object'", " : val && typeof val === 'object'",
" ? val.size || val.length || Object.keys(val).length", " ? val.size || val.length || Object.keys(val).length",
" : typeof val === 'string'", " : typeof val === 'string'",
" ? new Blob([val]).size", " ? new Blob([val]).size",
" : 0;" " : 0;"
], ],
"description": "Gets the size of an array, object or string.\n\nGet type of `val` (`array`, `object` or `string`). \nUse `length` property for arrays.\nUse `length` or `size` value if available or number of keys for objects.\nUse `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `val` for strings.\nSplit strings into array of characters with `split('')` and return its length.\n" "description": "Gets the size of an array, object or string.\n\nGet type of `val` (`array`, `object` or `string`). \nUse `length` property for arrays.\nUse `length` or `size` value if available or number of keys for objects.\nUse `size` of a [`Blob` object](https://developer.mozilla.org/en-US/docs/Web/API/Blob) created from `val` for strings.\nSplit strings into array of characters with `split('')` and return its length.\n"
}, },
@ -3449,6 +3449,20 @@
], ],
"description": "Returns the distance between two vectors.\n\nUse `Array.prototype.reduce()`, `Math.pow()` and `Math.sqrt()` to calculate the Euclidean distance between two vectors.\n" "description": "Returns the distance between two vectors.\n\nUse `Array.prototype.reduce()`, `Math.pow()` and `Math.sqrt()` to calculate the Euclidean distance between two vectors.\n"
}, },
"weightedSample": {
"prefix": "30s_weightedSample",
"body": [
"const weightedSample = (arr, weights) => {",
" let roll = Math.random();",
" return arr[",
" weights",
" .reduce((acc, w, i) => (i === 0 ? [w] : [...acc, acc[acc.length - 1] + w]), [])",
" .findIndex((v, i, s) => roll >= (i === 0 ? 0 : s[i - 1]) && roll < v)",
" ];",
"};"
],
"description": "Returns a random element from an array, using the provided `weights` as the probabilities for each element.\n\nUse `Array.prototype.reduce()` to create an array of partial sums for each value in `weights`.\nUse `Math.random()` to generate a random number and `Array.prototype.findIndex()` to find the correct index based on the array previously produced.\nFinally, return the element of `arr` with the produced index.\n\n"
},
"when": { "when": {
"prefix": "30s_when", "prefix": "30s_when",
"body": [ "body": [