How to remove a specific key from Javascript Object?

In Javascript, You can remove/delete key-value pairs from the Object easily.

Just use, delete keywords with object.keyname or object['keyname']. delete used for removing a object key from given objects in Javascript.

Let’s take a simple object,

let xyz = {};
xyz.first = 1;
xyz.second = 2;
xyz.third = 3;
xyz.forth = 4;

Run console.log(xyz);

{first: 1, second: 2, third: 3, forth: 4}

Now you want to remove the third key-value pair from the object,

delete xyz.third  OR delete xyz['third']

Check again Output:
{first: 1, second: 2, forth: 4}