Compare two arrays and return a new array with any items only found in one of the original arrays.

Revision: 70332

at January 16, 2016 06:45 by rain15

Initial Code

function diff(arr1, arr2) {
  var newArr = [];

  newArr = arr1.diff(arr2).concat(arr2.diff(arr1));
  
  return newArr;
}

Array.prototype.diff = function(a) {
    return this.filter(function(i) {return a.indexOf(i) < 0;});
};

function isSame(val1, val2) {
   return val1 === val2; 
}

diff([1, "calf", 3, "piglet"], [1, "calf", 3, 4] );

Initial URL

Initial Description

Compare two arrays and return a new array with any items only found in one of the original arrays.
ex.,
[1, "calf", 3, "piglet"], [1, "calf", 3, 4] should return ["piglet", 4].

Initial Title

Compare two arrays and return a new array with any items only found in one of the original arrays.

Initial Tags

Initial Language

JavaScript

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