Nodejs Array Where where(predicate)

Here you can find the source of where(predicate)

Method Source Code

Array.prototype.where = function (predicate) {
    var ret = [];
    for (var i = 0; i < this.length; ++i) {
        if (predicate(this[i], i))
            ret.push(this[i]);// w ww  .j a v a  2  s  .  c  om
    }
    return ret;
};

Related

  1. where(func)
    Array.prototype.where = function (func) {
        var items = [],
            length = this.length;
        for (var i = 0; i < length; i++) {
            if (func(this[i]))
                items.push(this[i]);
        return items.length === 0 ? null : items;
    
  2. where(inclusionTest)
    Array.prototype.where = function (inclusionTest) {
        var results = [];
        for (var i = 0; i < this.length; i++) {
            if (inclusionTest(this[i]))
                results.push(this[i]);
        return results;
    };
    Array.prototype.select = function (projection) {
    ...
    
  3. where(inclusionTest)
    Array.prototype.where = function (inclusionTest) {
        var results = [];
        for (var i = 0; i < this.length; i++) {
            if (inclusionTest(this[i]))
                results.push(this[i]);
        return results;
    };
    
  4. where(predicate)
    Array.prototype.where = function(predicate) {
        var derivedArray = [];
        for (i = 0; i < this.length; i += 1) {
            if (predicate(this[i])) {
                derivedArray.push(this[i]);
        return derivedArray;
    
  5. where(predicate)
    Array.prototype.where = function (predicate) {
        if (predicate == null || typeof (predicate) !== 'function') throw new Error('predicate should');
        var result = [];
        for (var i = 0; i < this.length; i++) {
            if (predicate(this[i], i)) result.push(this[i]);
        return result;
    };
    
  6. where(predicate)
    Array.prototype.where = function(predicate) {
        if (typeof(predicate) != "function") {
            throw new Error("The argument must be a function");
        var arr = [];
        var index = 0;
        var len = this.length;
        for (var i = 0; i < len; i++) {
            if (predicate(this[i])) {
    ...
    
  7. where(predicate, context)
    Array.prototype.where = Array.prototype.filter || function (predicate, context) {
      context = context || window;
      var arr = [];
      var l = this.length;
      for (var i = 0; i < l; i++)
        if (predicate.call(context, this[i], i, this) === true) arr.push(this[i]);
      return arr;
    };
    
  8. Where(func)
    Array.prototype.Where = function (func) {
        var result = [];
        this.forEach(function (item) {
            if (func(item)) {
                result.push( item );
        });
        return result;
    };
    ...
    
  9. Where(lambda)
    Array.prototype.Where = function (lambda) {
        if (typeof (lambda) !== "function")
            throw new Error("lambda must be a function");
        var results = [];
        for (var idx = 0; idx < this.length; idx++) {
            var obj = this[idx];
            if (lambda(obj))
                results.push(obj);
        return results;