List of utility methods to do Array Filter
filter(callback)Array.prototype.filter = function(callback){ const newArr = [] for(let i = 0; i < this.length; i += 1){ if(callback(this[i])){ newArr.push(this[i]) return newArr const arr = [1,2,3,4,5,6,7] const newArr = arr.filter((value) => { return (value%2 === 0) }) console.log(newArr) | |
filter(callback)Array.prototype.filter = function(callback){ var a = -1, len = this.length, result = []; while(++a < len){ callback(this[a], a, this) && result.push(this[a]); return result; }; ... | |
filter(callback, context)Array.prototype.filter = function(callback, context) { let filtered = []; this.forEach((item, index) => { if (callback.call(context, item, index, this)) filtered.push(item); }); return filtered; }; | |
filter(callback, context)var array = [1,2,3,4,5,6,7,8,9,4,5,6,7,7,5,6] var arrNew = array.Reject(function (el) return el % this }, 2) console.log(arrNew) Array.prototype.filter = function (callback, context) var arr = [] ... | |
filter(callbackfn, thisArg)Array.prototype.filter = function (callbackfn, thisArg) { var xs = []; for (var i=0; i<this.length; i++) if (Kernel.Reflect.apply(callbackfn, thisArg, [this[i], i, this])) xs[xs.length] = this[i]; return xs; | |
filter(cb)Array.prototype.filter = function(cb){ var arr = Object(this); var res = []; for(var i=0;i<arr.length;i++){ if(cb(arr[i])){ res.push(arr[i]); return res; ... | |
filter(f)var arr = ['hello', 42, true, function() {}, "123", 3.14, 0, [1], {}]; var isInteger = function(x) { return (typeof x === 'number' && isFinite(x) && Math.floor(x) === x); Array.prototype.filter = function(f) { var newArr = []; for (var i = 0; i < this.length; i++) { if (f(this[i])) newArr.push(this[i]); return newArr; }; var newArr = arr.filter(isInteger); console.log(newArr); | |
filter(f)var arr = ['hello', 42, true, function() {}, "123", 3.14, 0, [1], {}]; var isInteger = function(x) { return typeof x === 'number' && !isNaN(x) && x % 1 === 0; }; Array.prototype.filter = function(f) { var newArr = []; for (var i = 0; i < this.length; i++) { if ( f(this[i]) ) { newArr.push(this[i]); ... | |
filter(f)Array.prototype.filter = Array.prototype.filter || function (f) { var result = []; this.each(function (element) { if (f(element, result.length)) { result.push(element); }); return result; }; ... | |
filter(f)Array.prototype.filter = function(f) { var filtered = []; for(var i = 0; i < this.length; i++) f(this[i], i) && filtered.push(this[i]); return filtered; }; |