Question

I have an array like this

arr = ["orange","red","black","white"]

I want to augment the array object defining a deleteElem() method which acts like this:

arr2 = arr.deleteElem("red"); // ["orange","black","white"] (with no hole)

What is the best way to accomplish this task using just the value parameter (no index)?

Answer 1

Here’s how it’s done:

var arr = ["orange","red","black","white"];
var index = arr.indexOf("red");
if (index >= 0) {
  arr.splice( index, 1 );
}

This code will remove 1 occurency of “red” in your Array.