Array.remove prototype function

README.md

This is a small snippet that gives Javascript arrays the (much-needed) ability to remove elements based on value. Example:

items = [1,2,3,3,4,4,5];
items.remove(3); // => [1,2,4,4,5]

array.js

Array.prototype.remove = function(elem) {

    var ai = this.indexOf(elem);
    while(ai > -1){
        this.splice(ai,1);
        ai = this.indexOf(elem);
    }
    return this;
};

One thing to note, is that this modifies the original array, whereas your method returns a new array.

Your way:

var items = [1,2,3,3,4,4,5];
items.remove(3); // => [1,2,4,4,5]
items; // => [1,2,3,3,4,4,5];

My way:

var items = [1,2,3,3,4,4,5];
items.remove(3); // => [1,2,4,4,5]
items; // => [1,2,4,4,5]

To get my way working like yours you would have to copy the array first, via slice or concat:

items.slice(0).remove(3);