How to remove an element from a javascript array

Question

I have an array as below

var array = [];

var item1 = 'k1';
var itemvalue1 = {'key1':'value1'};
array[item1] = itemvalue1;

var item2 = 'k2';
var itemvalue2 = {'key2':'value2'};
array[item2] = itemvalue2;

Two questions...

How to get the position(index) of the item2 in the array
How to remove the item item2 from the array

Any help is appreciated.

An array has keys that are numerical and ordered, not strings. If you want those, use an object instead. — Andrew Li
– Andrew Li, Commented Apr 30, 2017 at 18:21
I'm pretty sure Riyas is a PHP programmer. There are no associative array in JavaScript... :D — Badacadabra
– Badacadabra, Commented Apr 30, 2017 at 18:33

Community · Accepted Answer · 2017-05-23 12:02:20Z

2

How to get the position(index) of the item2 in the array

It doesn't have one.

You assigned the value to a property called k2. That isn't a numeric index, so it doesn't have a position.

You almost certainly should be using a plain object ({}) and not an array in the first place.

How to remove the item item2 from the array

delete array.k2

(as per this question).

edited May 23, 2017 at 12:02

CommunityBot

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answered Apr 30, 2017 at 18:22

Quentin

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3 Comments

Priyesh Kumar Over a year ago

i think array.k2 will be undefined! array will be empty

Quentin Over a year ago

@PriyeshKumar — You think wrong! jsbin.com/dovilom/1/edit?js,console

Priyesh Kumar Over a year ago

ohh, I was checking array.item :)

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