deletge from object jaavscript code example
Example 1: javascript remove object key
var obj = {a: 5, b: 3};
delete obj["a"];
console.log(obj); // {b: 3}
Example 2: nodejs delete object key
delete obj.firstname;
var obj = {a: 5, b: 3};
delete obj["a"];
console.log(obj); // {b: 3}
delete obj.firstname;