Nodejs Array Filter filter(func)

Here you can find the source of filter(func)

Method Source Code

Array.prototype.filter = function(func) {
    var result = [];
    for(var i=0;i<this.length;i++) 
        if (func(this[i]))
            result.push(this[i]);/*from w ww .ja v  a2  s . c  o m*/
    return result;
}

Related

  1. filter(fun)
    "use strict";
    Array.prototype.filter = function (fun) {
        let filtered = [];
        for (let i = 0; i < this.length; i++) {
            if (fun(this[i])) {
                filtered.push(this[i]);
        return filtered;
    ...
    
  2. filter(fun)
    "use strict";
    Array.prototype.filter = function (fun) {
        let arr = [];
        let thisArg = arguments.length >= 2 ? arguments[1] : void 0;
        for (let i = 0; i < this.length; i++) {
            if (fun.call(thisArg, this[i], i, this)) {
                arr.push(this[i]);
        return arr;
    
  3. filter(fun)
    Array.prototype.filter = function (fun) {
        var len = this.length;
        var res = [];
        var thisArg = void 0;
        for (var i = 0; i < len; i++) {
            var val = this[i];
            if (fun.call(thisArg, val)) {
                res.push(val);
        return res;
    };
    
  4. filter(fun)
    Array.prototype.filter = function(fun) {
      "use strict";
      var i, len, res, t, thisArg, val;
      if (this === void 0 || this === null) {
        throw new TypeError();
      t = Object(this);
      len = t.length >>> 0;
      if (typeof fun !== "function") {
    ...
    
  5. filter(fun, thisp)
    Array.prototype.filter = function(fun, thisp) {
      "use strict";
      if (this === void 0 || this === null) {
        throw new TypeError();
      var t = Object(this);
      var len = t.length >>> 0;
      if (typeof fun !== "function") {
        throw new TypeError();
    ...
    
  6. filter(grade)
    var school = [1, 2, 3, 4, 5, 6, 7, 8, 3, 35, 3, 5];
    Array.prototype.filter = function(grade) {
      var result = [];
      this.forEach(function(item) {
        if (grade(item)) {
          result.push(item);
      });
      return result;
    ...
    
  7. filter(isOk)
    const array = [1, 42, 7, 9, 13, 10, 20, 35, 45, -7, -3, 0, 4, -1, 15];
    Array.prototype.filter = function (isOk) {
      let filteredArray = [];
      const len = this.length;
      for (let i = 0; i < len; i += 1) {
        if(isOk(this[i], i, this)) {
          filteredArray.push(this[i]);
      return filteredArray;
    };
    
  8. filter(iterator)
    Array.prototype.filter = function(iterator) {
      var results = [];
      for (var i = 0, len = this.length; i < len; i++) {
        if (iterator(this[i], i)) {
          results.push(this[i]);
      return results;
    };
    ...
    
  9. filter(predicate)
    Array.prototype.filter = function(predicate) {
      var result = []
      for ( var i = 0; i < this.length; i++) {
        if (predicate(this[i])) {
          result.push(this[i]);
      return result;