diff --git a/snippet_data/snippetList.json b/snippet_data/snippetList.json index ec25a404a..4b2f2cb6e 100644 --- a/snippet_data/snippetList.json +++ b/snippet_data/snippetList.json @@ -848,7 +848,7 @@ ] }, "meta": { - "hash": "5ab25ab96afd4f1f481fc318b5b290ba8c57a468ef6bca0ca200cfb7fcf3ba9f" + "hash": "77a01af8797ecbe71b9c9412d21c144c03a46a49dd3d0e7d869c3df38b39b2b4" } }, { @@ -911,7 +911,7 @@ ] }, "meta": { - "hash": "7a228b650ff668f697e524e0d27ebeff1bfa35e04333b6cd5e742ff63bfea25d" + "hash": "6fa14364405f7b99aa49c2157bdc08c02b4ce2f288db29a4348a6983460933c7" } }, { @@ -1050,7 +1050,7 @@ ] }, "meta": { - "hash": "5f38360819f9225b887a94221bfee1a80f1bcc224a364440b3388f60491b03ba" + "hash": "bdc202436bee09f06a353d31841c6cfff33e8efead34c6c56ae1a1413284976d" } }, { @@ -1286,7 +1286,7 @@ ] }, "meta": { - "hash": "55b1ce0a892110d792a9487e40331774015525479faa2b8961f6c2ea6291c27b" + "hash": "6e9710c9117f500e74e65c0ee36b39fb80bd55537fa5ff9c4b1136b2667096f2" } }, { @@ -1690,7 +1690,7 @@ ] }, "meta": { - "hash": "16c3b724b653dcb31f3e59f1664a59951abb15a93eb3697cade4d3ae0e63c532" + "hash": "9e39c6a3a8ec5b51c5e16f69107fc9e90b2697b2cf2689850872071bb968723e" } }, { @@ -2501,6 +2501,21 @@ "hash": "c9004512c957ceeda55d851452ad2b2d59235648272222fd36ca75d98965f0b6" } }, + { + "id": "isLeapYear", + "type": "snippetListing", + "title": "isLeapYear", + "attributes": { + "text": "Returns `true` if the given `year` is a leap year, `false` otherwise.\n\nUse `new Date()`, setting the date to February 29th of the given `year` and use `Date.prototype.getMonth()` to check if the month is equal to `1`.\n\n", + "tags": [ + "date", + "beginner" + ] + }, + "meta": { + "hash": "28d0c6b5e677ef68487216388c848c86d44a11c6668fc6f214a7daf45552aa41" + } + }, { "id": "isLowerCase", "type": "snippetListing", @@ -2922,7 +2937,7 @@ ] }, "meta": { - "hash": "362fddaa6244404741e84bca6fc442a101fdb642af53b299e8b9994d0d7162d8" + "hash": "3db3faac666ee61ab86c70766d2ab5d1293ffd818da87edb971bfff7a366364a" } }, { @@ -3497,7 +3512,7 @@ ] }, "meta": { - "hash": "b031c3387ef66411ab5d295788eac4247ada5b4b068dda90603d3c973890bc26" + "hash": "e8f820ce6da97eabde082ffb829c9fb700e85efc79bdebe883c67237269e3f52" } }, { @@ -3843,7 +3858,7 @@ ] }, "meta": { - "hash": "0eb844801e767edcaa6a882a6dce4b5b1dadecb53a92d6ec259d36c57b6a3dd0" + "hash": "a2b9ac4f1209c3791caa6f40f0d041acd75514e9ee8909f2e3833635f357c0bd" } }, { @@ -4237,7 +4252,7 @@ ] }, "meta": { - "hash": "ffb9c0d1d09aeb989789286efb91cc237b89ce13f44ad9510a014f9ab150df71" + "hash": "be8ec39c092128ba679a3f0421b6abc34ad891dec85354caa419dc4104687a05" } }, { @@ -4553,7 +4568,7 @@ ] }, "meta": { - "hash": "24b93b68a59b49f245590930fed6fb82e286ce09f90e292466cde63c1784c347" + "hash": "6dd4c6a51d2c80fa4768c95ae01c16a8359c4140bcad28c7fde0cecd72d7d3e2" } }, { diff --git a/snippet_data/snippets.json b/snippet_data/snippets.json index 7a39dc54b..da68c61ac 100644 --- a/snippet_data/snippets.json +++ b/snippet_data/snippets.json @@ -1384,10 +1384,10 @@ ] }, "meta": { - "hash": "5ab25ab96afd4f1f481fc318b5b290ba8c57a468ef6bca0ca200cfb7fcf3ba9f", + "hash": "77a01af8797ecbe71b9c9412d21c144c03a46a49dd3d0e7d869c3df38b39b2b4", "firstSeen": "1516733326", - "lastUpdated": "1586964947", - "updateCount": 81, + "lastUpdated": "1586971612", + "updateCount": 82, "authorCount": 9 } }, @@ -1487,10 +1487,10 @@ ] }, "meta": { - "hash": "7a228b650ff668f697e524e0d27ebeff1bfa35e04333b6cd5e742ff63bfea25d", + "hash": "6fa14364405f7b99aa49c2157bdc08c02b4ce2f288db29a4348a6983460933c7", "firstSeen": "1544374334", - "lastUpdated": "1586964947", - "updateCount": 93, + "lastUpdated": "1586971612", + "updateCount": 94, "authorCount": 4 } }, @@ -1716,10 +1716,10 @@ ] }, "meta": { - "hash": "5f38360819f9225b887a94221bfee1a80f1bcc224a364440b3388f60491b03ba", + "hash": "bdc202436bee09f06a353d31841c6cfff33e8efead34c6c56ae1a1413284976d", "firstSeen": "1531080384", - "lastUpdated": "1586964947", - "updateCount": 118, + "lastUpdated": "1586971612", + "updateCount": 119, "authorCount": 5 } }, @@ -2102,10 +2102,10 @@ ] }, "meta": { - "hash": "55b1ce0a892110d792a9487e40331774015525479faa2b8961f6c2ea6291c27b", + "hash": "6e9710c9117f500e74e65c0ee36b39fb80bd55537fa5ff9c4b1136b2667096f2", "firstSeen": "1512650493", - "lastUpdated": "1586964947", - "updateCount": 123, + "lastUpdated": "1586971612", + "updateCount": 124, "authorCount": 6 } }, @@ -2756,7 +2756,7 @@ "fileName": "getMeridiemSuffixOfInteger.md", "text": "Converts an integer to a suffixed string, adding `am` or `pm` based on its value.\n\nUse the modulo operator (`%`) and conditional checks to transform an integer to a stringified 12-hour format with meridiem suffix.\n\n", "codeBlocks": { - "es6": "const getMeridiemSuffixOfInteger = num =>\n num === 0 || num === 24\n ? 12 + 'am'\n : num === 12\n ? 12 + 'pm'\n : num < 12\n ? (num % 12) + 'am'\n : (num % 12) + 'pm';", + "es6": "const getMeridiemSuffixOfInteger = num =>\n num === 0 || num === 24\n ? 12 + 'am'\n : num === 12\n ? 12 + 'pm'\n : num < 12\n ? (num % 12) + 'am'\n : (num % 12) + 'pm';", "es5": "var getMeridiemSuffixOfInteger = function getMeridiemSuffixOfInteger(num) {\n return num === 0 || num === 24 ? 12 + 'am' : num === 12 ? 12 + 'pm' : num < 12 ? num % 12 + 'am' : num % 12 + 'pm';\n};", "example": "getMeridiemSuffixOfInteger(0); // \"12am\"\ngetMeridiemSuffixOfInteger(11); // \"11am\"\ngetMeridiemSuffixOfInteger(13); // \"1pm\"\ngetMeridiemSuffixOfInteger(25); // \"1pm\"" }, @@ -2766,10 +2766,10 @@ ] }, "meta": { - "hash": "16c3b724b653dcb31f3e59f1664a59951abb15a93eb3697cade4d3ae0e63c532", + "hash": "9e39c6a3a8ec5b51c5e16f69107fc9e90b2697b2cf2689850872071bb968723e", "firstSeen": "1515856488", - "lastUpdated": "1586964947", - "updateCount": 82, + "lastUpdated": "1586971612", + "updateCount": 83, "authorCount": 4 } }, @@ -4091,6 +4091,31 @@ "authorCount": 5 } }, + { + "id": "isLeapYear", + "title": "isLeapYear", + "type": "snippet", + "attributes": { + "fileName": "isLeapYear.md", + "text": "Returns `true` if the given `year` is a leap year, `false` otherwise.\n\nUse `new Date()`, setting the date to February 29th of the given `year` and use `Date.prototype.getMonth()` to check if the month is equal to `1`.\n\n", + "codeBlocks": { + "es6": "const isLeapYear = year => new Date(year, 1, 29).getMonth() === 1;", + "es5": "var isLeapYear = function isLeapYear(year) {\n return new Date(year, 1, 29).getMonth() === 1;\n};", + "example": "isLeapYear(2019); // false\nisLeapYear(2020); // true" + }, + "tags": [ + "date", + "beginner" + ] + }, + "meta": { + "hash": "28d0c6b5e677ef68487216388c848c86d44a11c6668fc6f214a7daf45552aa41", + "firstSeen": "1580904003", + "lastUpdated": "1586972089", + "updateCount": 3, + "authorCount": 3 + } + }, { "id": "isLowerCase", "title": "isLowerCase", @@ -4768,7 +4793,7 @@ "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", "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};", "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\"" }, @@ -4778,10 +4803,10 @@ ] }, "meta": { - "hash": "362fddaa6244404741e84bca6fc442a101fdb642af53b299e8b9994d0d7162d8", + "hash": "3db3faac666ee61ab86c70766d2ab5d1293ffd818da87edb971bfff7a366364a", "firstSeen": "1514801920", - "lastUpdated": "1586964947", - "updateCount": 89, + "lastUpdated": "1586971612", + "updateCount": 90, "authorCount": 7 } }, @@ -5039,8 +5064,8 @@ "meta": { "hash": "68636f34d8e41a72c156ff12a2e9e3916c6a841eead638c7124da5a1f4c730bd", "firstSeen": "1513591918", - "lastUpdated": "1586964947", - "updateCount": 12, + "lastUpdated": "1586971612", + "updateCount": 13, "authorCount": 8 } }, @@ -5701,7 +5726,7 @@ "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", "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};", "example": "objectToQueryString({ page: '1', size: '2kg', key: undefined }); // '?page=1&size=2kg'" }, @@ -5713,10 +5738,10 @@ ] }, "meta": { - "hash": "b031c3387ef66411ab5d295788eac4247ada5b4b068dda90603d3c973890bc26", + "hash": "e8f820ce6da97eabde082ffb829c9fb700e85efc79bdebe883c67237269e3f52", "firstSeen": "1570824965", - "lastUpdated": "1586964947", - "updateCount": 56, + "lastUpdated": "1586971612", + "updateCount": 57, "authorCount": 4 } }, @@ -6270,7 +6295,7 @@ "codeBlocks": { "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};", - "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": [ "function", @@ -6279,10 +6304,10 @@ ] }, "meta": { - "hash": "0eb844801e767edcaa6a882a6dce4b5b1dadecb53a92d6ec259d36c57b6a3dd0", + "hash": "a2b9ac4f1209c3791caa6f40f0d041acd75514e9ee8909f2e3833635f357c0bd", "firstSeen": "1517069864", - "lastUpdated": "1586964947", - "updateCount": 114, + "lastUpdated": "1586971612", + "updateCount": 115, "authorCount": 5 } }, @@ -6913,7 +6938,7 @@ "fileName": "remove.md", "text": "Mutates an array by removing elements 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": { - "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};", "example": "remove([1, 2, 3, 4], n => n % 2 === 0); // [2, 4]" }, @@ -6923,10 +6948,10 @@ ] }, "meta": { - "hash": "ffb9c0d1d09aeb989789286efb91cc237b89ce13f44ad9510a014f9ab150df71", + "hash": "be8ec39c092128ba679a3f0421b6abc34ad891dec85354caa419dc4104687a05", "firstSeen": "1513521691", - "lastUpdated": "1586964947", - "updateCount": 111, + "lastUpdated": "1586971612", + "updateCount": 112, "authorCount": 6 } }, @@ -7427,7 +7452,7 @@ "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", "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) { \"@babel/helpers - typeof\"; 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" }, @@ -7439,10 +7464,10 @@ ] }, "meta": { - "hash": "24b93b68a59b49f245590930fed6fb82e286ce09f90e292466cde63c1784c347", + "hash": "6dd4c6a51d2c80fa4768c95ae01c16a8359c4140bcad28c7fde0cecd72d7d3e2", "firstSeen": "1514645161", - "lastUpdated": "1586964947", - "updateCount": 53, + "lastUpdated": "1586971612", + "updateCount": 54, "authorCount": 5 } }, diff --git a/snippets/deepClone.md b/snippets/deepClone.md index 5eefd68bd..583169aa7 100644 --- a/snippets/deepClone.md +++ b/snippets/deepClone.md @@ -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. ```js - const deepClone = obj => { if (obj === null) return null; let clone = Object.assign({}, obj); diff --git a/snippets/deepMapKeys.md b/snippets/deepMapKeys.md index 349ba652f..e9561091d 100644 --- a/snippets/deepMapKeys.md +++ b/snippets/deepMapKeys.md @@ -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`. ```js - const deepMapKeys = (obj, f) => Array.isArray(obj) ? obj.map(val => deepMapKeys(val, f)) diff --git a/snippets/dig.md b/snippets/dig.md index b1ec83f8e..4484cdd6f 100644 --- a/snippets/dig.md +++ b/snippets/dig.md @@ -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. ```js - const dig = (obj, target) => target in obj ? obj[target] diff --git a/snippets/factorial.md b/snippets/factorial.md index baa668b8f..461dbd4f1 100644 --- a/snippets/factorial.md +++ b/snippets/factorial.md @@ -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. ```js - const factorial = n => n < 0 ? (() => { diff --git a/snippets/getMeridiemSuffixOfInteger.md b/snippets/getMeridiemSuffixOfInteger.md index 74ac86ec7..c460f5644 100644 --- a/snippets/getMeridiemSuffixOfInteger.md +++ b/snippets/getMeridiemSuffixOfInteger.md @@ -8,15 +8,14 @@ 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. ```js - const getMeridiemSuffixOfInteger = num => num === 0 || num === 24 ? 12 + 'am' : num === 12 - ? 12 + 'pm' - : num < 12 - ? (num % 12) + 'am' - : (num % 12) + 'pm'; + ? 12 + 'pm' + : num < 12 + ? (num % 12) + 'am' + : (num % 12) + 'pm'; ``` ```js diff --git a/snippets/isLeapYear.md b/snippets/isLeapYear.md index 2cc49e891..a54e41cfb 100644 --- a/snippets/isLeapYear.md +++ b/snippets/isLeapYear.md @@ -8,7 +8,8 @@ Returns `true` if the given `year` is a leap year, `false` otherwise. Use `new Date()`, setting the date to February 29th of the given `year` and use `Date.prototype.getMonth()` to check if the month is equal to `1`. ```js -const isLeapYear = (year) => new Date(year, 1, 29).getMonth() === 1; + +const isLeapYear = year => new Date(year, 1, 29).getMonth() === 1; ``` ```js diff --git a/snippets/join.md b/snippets/join.md index 6bf258224..6df3c9145 100644 --- a/snippets/join.md +++ b/snippets/join.md @@ -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. ```js - const join = (arr, separator = ',', end = separator) => arr.reduce( (acc, val, i) => i === arr.length - 2 ? acc + val + end : i === arr.length - 1 - ? acc + val - : acc + val + separator, + ? acc + val + : acc + val + separator, '' ); ``` diff --git a/snippets/objectToQueryString.md b/snippets/objectToQueryString.md index 0b63cd94f..e83fdddce 100644 --- a/snippets/objectToQueryString.md +++ b/snippets/objectToQueryString.md @@ -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. ```js - const objectToQueryString = queryParameters => { return queryParameters ? Object.entries(queryParameters).reduce((queryString, [key, val], index) => { - const symbol = queryString.length === 0 ? '?' : '&'; - queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : ''; - return queryString; - }, '') + const symbol = queryString.length === 0 ? '?' : '&'; + queryString += typeof val === 'string' ? `${symbol}${key}=${val}` : ''; + return queryString; + }, '') : ''; }; ``` diff --git a/snippets/pipeAsyncFunctions.md b/snippets/pipeAsyncFunctions.md index 921de2bd4..3044ba7ea 100644 --- a/snippets/pipeAsyncFunctions.md +++ b/snippets/pipeAsyncFunctions.md @@ -14,14 +14,13 @@ const pipeAsyncFunctions = (...fns) => arg => fns.reduce((p, f) => p.then(f), Pr ``` ```js - const sum = pipeAsyncFunctions( x => x + 1, x => new Promise(resolve => setTimeout(() => resolve(x + 2), 1000)), x => x + 3, async x => (await x) + 4 ); -(async() => { +(async () => { console.log(await sum(5)); // 15 (after one second) })(); ``` diff --git a/snippets/remove.md b/snippets/remove.md index 1c08d075e..1f6491ce4 100644 --- a/snippets/remove.md +++ b/snippets/remove.md @@ -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`). ```js + const remove = (arr, func) => Array.isArray(arr) ? arr.filter(func).reduce((acc, val) => { - arr.splice(arr.indexOf(val), 1); - return acc.concat(val); - }, []) + arr.splice(arr.indexOf(val), 1); + return acc.concat(val); + }, []) : []; ``` diff --git a/snippets/size.md b/snippets/size.md index c658adcb7..b940a8ea5 100644 --- a/snippets/size.md +++ b/snippets/size.md @@ -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. ```js - const size = val => 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; + ? val.size || val.length || Object.keys(val).length + : typeof val === 'string' + ? new Blob([val]).size + : 0; ``` ```js