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30secondsofcode
2019-04-13 15:31:46 +00:00
parent 910dd5c248
commit 4350413674
5 changed files with 19 additions and 19 deletions
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6
snippet_data/snippetList.json
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@ -386,7 +386,7 @@
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12
snippet_data/snippets.json
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@ -3249,11 +3249,11 @@
"type": "snippet",
"attributes": {
"fileName": "isEmpty.md",
"text": "Returns true if the a value is an empty object, collection, map or set, has no enumerable properties or is any type that is not considered a collection.\n\nCheck if the provided value is `null` or if its `length` is equal to `0`.",
"text": "Returns true if the a value is an empty object, collection, has no enumerable properties or is any type that is not considered a collection.\n\nCheck if the provided value is `null` or if its `length` is equal to `0`.",
"codeBlocks": {
"es6": "const isEmpty = val => val == null || !(Object.keys(val) || val).length;",
"es5": "var isEmpty = function isEmpty(val) {\n return val == null || !(Object.keys(val) || val).length;\n};",
"example": "isEmpty(new Map()); // true\nisEmpty(new Set()); // true\nisEmpty([]); // true\nisEmpty({}); // true\nisEmpty(''); // true\nisEmpty([1, 2]); // false\nisEmpty({ a: 1, b: 2 }); // false\nisEmpty('text'); // false\nisEmpty(123); // true - type is not considered a collection\nisEmpty(true); // true - type is not considered a collection"
"example": "isEmpty([]); // true\nisEmpty({}); // true\nisEmpty(''); // true\nisEmpty([1, 2]); // false\nisEmpty({ a: 1, b: 2 }); // false\nisEmpty('text'); // false\nisEmpty(123); // true - type is not considered a collection\nisEmpty(true); // true - type is not considered a collection"
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@ -5575,7 +5575,7 @@
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"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`).",
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"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]"
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