Nodejs Array Equal equals(arr)

Here you can find the source of equals(arr)

Method Source Code

Array.prototype.equals = function (arr) {
  const len = this.length/*  w  w  w  . j  a  v a  2 s.  c  o m*/
  if (len !== arr.length) {
    return false
  }
  for (let i = 0; i < len; i++) {
    if (this[i] !== arr[i]) {
      return false
    }
  }
  return true
}

const a = [1, 2].equals([1, 2]) // true
const b = [1, 2].equals([0]) // false

console.log(a, b)

Related

  1. equalTo(compareTo)
    Array.prototype.equalTo = function(compareTo) {
      if (this.length !== compareTo.length) {
        return false;
      for(var i = 0; i < compareTo.length; i++) {
        if (this[i] !== compareTo[i]) {
          return false;
      return true;
    };
    
  2. equals(arr)
    Array.prototype.equals = function(arr) {
      var len = arr.length;
      if (this.length !== len) {
        return false;
      for (var i = 0; i < len;i ++) {
        if (this[i] !== arr[i]) {
          return false;
      return true;
    };
    var arr = [1, 2, 3];
    var arr2 = [1, 2, 3];
    var bol = arr.equals(arr2);
    console.log(bol); 
    
  3. equals(arr)
    Array.prototype.equals = function(arr) {
      const len = this.length
      if (len !== arr.length) {
        return false
      for (let i = 0; i < len; i++) {
        if (this[i] !== arr[i]) {
          console.log(222,this[i])
          return false
    ...
    
  4. equals(arr)
    "use strict";
    var pairToCoords = function pairToCoords(pair) {
      return { x: pair[0], y: pair[1] };
    };
    var coordsToPair = function coordsToPair(coords) {
      return [coords.x, coords.y];
    };
    coordsToPair(pairToCoords([1, 2])); 
    pairToCoords(coordsToPair({ x: 1, y: 2 })); 
    ...
    
  5. equals(arr)
    Array.prototype.equals = function (arr) {
      if (this.length != arr.length) return false;
      return this.reduce(function (acc, el, i) {
      if (_.isArray(el)) return acc && el.equals(arr[i]);
      return acc && el === arr[i];
    }, true)};
    
  6. equals(arr)
    Array.prototype.equals = function(arr) {
      if(!this || !arr) {
        return false
      if(this.length != arr.length) {
        return false
      for(i = 0; i < arr.length; i++) {
        if (this[i] != arr[i]) {
    ...