How to remove item from a JavaScript object

javascript object
ezebemmel picture ezebemmel · Jun 9, 2011 · Viewed 385.5k times · Source

How can I remove an item from a JavaScript object?

Like this:

var test = {'red':'#FF0000', 'blue':'#0000FF'};
test.remove('blue');

Answer

matchew picture matchew · Jun 9, 2011 

var test = {'red':'#FF0000', 'blue':'#0000FF'};
delete test.blue; // or use => delete test['blue'];
console.log(test);

this deletes test.blue

Related questions

Checking if a key exists in a JavaScript object?

How do I check if a particular key exists in a JavaScript object or array? If a key doesn't exist, and I try to access it, will it return false? Or throw an error?

Read More
What is the most efficient way to deep clone an object in JavaScript?

What is the most efficient way to clone a JavaScript object? I've seen obj = eval(uneval(o)); being used, but that's non-standard and only supported by Firefox. I've done things like obj = JSON.parse(JSON.stringify(o)); but question the …

Read More
Converting an object to a string

How can I convert a JavaScript object into a string? Example: var o = {a:1, b:2} console.log(o) console.log('Item: ' + o) Output: Object { a=1, b=2} // very nice readable output :) Item: [object Object] // no idea what's inside :(

Read More