Travis build: 1511

This commit is contained in:
30secondsofcode
2019-10-16 06:39:13 +00:00
parent 4b6bce7ac8
commit ca2c1a51c0
14 changed files with 207 additions and 117 deletions

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@ -412,7 +412,7 @@
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"title": "objectToQueryString",
"attributes": {
"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 `index` 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",
"tags": [
"utility",
"object",
"function",
"intermediate"
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@ -568,7 +568,7 @@
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@ -1142,7 +1142,7 @@
"fileName": "deepClone.md",
"text": "Creates a deep clone of an object.\n\nUse recursion.\nCheck if the passed object is `null` and, if so, return `null`.\nUse `Object.assign()` and an empty object (`{}`) to create a shallow clone of the original.\nUse `Object.keys()` and `Array.prototype.forEach()` to determine which key-value pairs need to be deep cloned.\n\n",
"codeBlocks": {
"es6": "const deepClone = obj => {\n if (obj === null) return null;\n let clone = Object.assign({}, obj);\n Object.keys(clone).forEach(\n key => (clone[key] = typeof obj[key] === 'object' ? deepClone(obj[key]) : obj[key])\n );\n return Array.isArray(obj) && obj.length\n ? (clone.length = obj.length) && Array.from(clone)\n : Array.isArray(obj)\n ? Array.from(obj)\n : clone;\n};",
"es6": "const deepClone = obj => {\n if (obj === null) return null;\n let clone = Object.assign({}, obj);\n Object.keys(clone).forEach(\n key => (clone[key] = typeof obj[key] === 'object' ? deepClone(obj[key]) : obj[key])\n );\n return Array.isArray(obj) && obj.length\n ? (clone.length = obj.length) && Array.from(clone)\n : Array.isArray(obj)\n ? Array.from(obj)\n : clone;\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 deepClone = function deepClone(obj) {\n if (obj === null) return null;\n var clone = Object.assign({}, obj);\n Object.keys(clone).forEach(function (key) {\n return clone[key] = _typeof(obj[key]) === 'object' ? deepClone(obj[key]) : obj[key];\n });\n return Array.isArray(obj) && obj.length ? (clone.length = obj.length) && Array.from(clone) : Array.isArray(obj) ? Array.from(obj) : clone;\n};",
"example": "const a = { foo: 'bar', obj: { a: 1, b: 2 } };\nconst b = deepClone(a); // a !== b, a.obj !== b.obj"
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"fileName": "deepMapKeys.md",
"text": "Deep maps an object's keys.\n\nCreates an object with the same values as the provided object and keys generated by running the provided function for each key.\nUse `Object.keys(obj)` to iterate over the object's keys. \nUse `Array.prototype.reduce()` to create a new object with the same values and mapped keys using `fn`.\n\n",
"codeBlocks": {
"es6": "const deepMapKeys = (obj, f) =>\n Array.isArray(obj)\n ? obj.map(val => deepMapKeys(val, f))\n : typeof obj === 'object'\n ? Object.keys(obj).reduce((acc, current) => {\n const val = obj[current];\n acc[f(current)] =\n val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);\n return acc;\n }, {})\n : obj;",
"es6": "const deepMapKeys = (obj, f) =>\n Array.isArray(obj)\n ? obj.map(val => deepMapKeys(val, f))\n : typeof obj === 'object'\n ? Object.keys(obj).reduce((acc, current) => {\n const val = obj[current];\n acc[f(current)] =\n val !== null && typeof val === 'object' ? deepMapKeys(val, f) : (acc[f(current)] = val);\n return acc;\n }, {})\n : obj;",
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"example": "const obj = {\n foo: '1',\n nested: {\n child: {\n withArray: [\n {\n grandChild: ['hello']\n }\n ]\n }\n }\n};\nconst upperKeysObj = deepMapKeys(obj, key => key.toUpperCase());\n/*\n{\n \"FOO\":\"1\",\n \"NESTED\":{\n \"CHILD\":{\n \"WITHARRAY\":[\n {\n \"GRANDCHILD\":[ 'hello' ]\n }\n ]\n }\n }\n}\n*/"
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"fileName": "dig.md",
"text": "Returns the target value in a nested JSON object, based on the given key.\n\nUse the `in` operator to check if `target` exists in `obj`.\nIf 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.\n\n",
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"es6": "const dig = (obj, target) =>\n target in obj\n ? obj[target]\n : Object.values(obj).reduce((acc, val) => {\n if (acc !== undefined) return acc;\n if (typeof val === 'object') return dig(val, target);\n }, undefined);",
"es6": "const dig = (obj, target) =>\n target in obj\n ? obj[target]\n : Object.values(obj).reduce((acc, val) => {\n if (acc !== undefined) return acc;\n if (typeof val === 'object') return dig(val, target);\n }, undefined);",
"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 dig = function dig(obj, target) {\n return target in obj ? obj[target] : Object.values(obj).reduce(function (acc, val) {\n if (acc !== undefined) return acc;\n if (_typeof(val) === 'object') return dig(val, target);\n }, undefined);\n};",
"example": "const data = {\n level1: {\n level2: {\n level3: 'some data'\n }\n }\n};\ndig(data, 'level3'); // 'some data'\ndig(data, 'level4'); // undefined"
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@ -1433,7 +1433,7 @@
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@ -1748,7 +1748,7 @@
"fileName": "factorial.md",
"text": "Calculates the factorial of a number.\n\nUse recursion.\nIf `n` is less than or equal to `1`, return `1`.\nOtherwise, return the product of `n` and the factorial of `n - 1`.\nThrows an exception if `n` is a negative number.\n\n",
"codeBlocks": {
"es6": "const factorial = n =>\n n < 0\n ? (() => {\n throw new TypeError('Negative numbers are not allowed!');\n })()\n : n <= 1\n ? 1\n : n * factorial(n - 1);",
"es6": "const factorial = n =>\n n < 0\n ? (() => {\n throw new TypeError('Negative numbers are not allowed!');\n })()\n : n <= 1\n ? 1\n : n * factorial(n - 1);",
"es5": "var factorial = function factorial(n) {\n return n < 0 ? function () {\n throw new TypeError('Negative numbers are not allowed!');\n }() : n <= 1 ? 1 : n * factorial(n - 1);\n};",
"example": "factorial(6); // 720"
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@ -1759,7 +1759,7 @@
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@ -2310,7 +2310,7 @@
"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\""
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@ -2320,7 +2320,7 @@
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@ -2552,9 +2552,9 @@
"fileName": "hasKey.md",
"text": "Returns `true` if the target value exists in a JSON object, `false` otherwise.\n\nCheck if the key contains `.`, use `String.prototype.split('.')[0]` to get the first part and store as `_key`.\nUse `typeof` to check if the contents of `obj[key]` are an `object` and, if so, call `hasKey` with that object and the remainder of the `key`.\nOtherwise, use `Object.keys(obj)` in combination with `Array.prototype.includes()` to check if the given `key` exists.\n\n",
"codeBlocks": {
"es6": "const hasKey = (obj, key) => {\n if (key.includes('.')) {\n let _key = key.split('.')[0];\n if (typeof obj[_key] === 'object')\n return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));\n }\n return Object.keys(obj).includes(key);\n};",
"es6": "const hasKey = (obj, key) => {\n if (key.includes('.')) {\n let _key = key.split('.')[0];\n if (typeof obj[_key] === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));\n }\n return Object.keys(obj).includes(key);\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 hasKey = function hasKey(obj, key) {\n if (key.includes('.')) {\n var _key = key.split('.')[0];\n if (_typeof(obj[_key]) === 'object') return hasKey(obj[_key], key.slice(key.indexOf('.') + 1));\n }\n\n return Object.keys(obj).includes(key);\n};",
"example": "let obj = {\n a: 1, b: { c: 4 }, 'd.e': 5\n};\nhasKey(obj, 'a'); // true\nhasKey(obj, 'b'); // true\nhasKey(obj, 'b.c'); // true\nhasKey(obj, 'd.e'); // true\nhasKey(obj, 'd'); // false\nhasKey(obj, 'f'); // false"
"example": "let obj = {\n a: 1,\n b: { c: 4 },\n 'd.e': 5\n};\nhasKey(obj, 'a'); // true\nhasKey(obj, 'b'); // true\nhasKey(obj, 'b.c'); // true\nhasKey(obj, 'd.e'); // true\nhasKey(obj, 'd'); // false\nhasKey(obj, 'f'); // false"
},
"tags": [
"object",
@ -2563,7 +2563,7 @@
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@ -3906,7 +3906,7 @@
"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\""
},
@ -3916,7 +3916,7 @@
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{
"id": "objectToQueryString",
"title": "objectToQueryString",
"type": "snippet",
"attributes": {
"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 `index` 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 = index === 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) { 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 = index === 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'"
},
"tags": [
"utility",
"object",
"function",
"intermediate"
]
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