javascript splicing array

Question

I have an array of object and I'm looking to remove an element. However, the splice method seems to return the element removed, not the array without the element I wanted to remove.

This is what I have

var TheArray = TheObject.Array;
TheArray = TheArray.splice(TheIndex, 1); //TheIndex is the index of the element I want to remove
TheObject.Array = TheArrray;

When I debug and run this code, TheObject.Array contains the element I wanted to remove.

What am I doing wrong? Thanks for your suggestions.

Answer 1

splice returns the removed element, but modifies the element on which it was called. So in your example, TheArray is updated in place, and should no longer contain the removed element.

A more concrete, simplified example of how to use splice is as follows:

var myArr = ["a", "b", "c", "d"];
var elem = myArr.splice(2, 1);
// elem  => ["c"]
// myArr => ["a", "b", "d"]