/Javascript/Node.js/Nodejs delete object key

Nodejs delete object key

Javascript delete key from object

let person = {
  firstname: 'John',
  lastname: 'Doe'
}

console.log(person.firstname);
// expected output: "John"

delete person.firstname;

console.log(person.firstname);
// expected output: undefined

Nodejs delete object key

delete obj.firstname;

Javascript remove object key

var obj = {a: 5, b: 3};
delete obj["a"];
console.log(obj); // {b: 3}

Js remove key from object

// Example 1
var key = "Cow";
delete thisIsObject[key]; 

// Example 2
delete thisIsObject["Cow"];

// Example 3
delete thisIsObject.Cow;

Source: stackoverflow.com

Similar codes

4 votes120 views1 answer
How to check file extension in node js
Javascript Node.js
103 votes212 views6 answers
How to install node js in ubuntu
Javascript Node.js
5 votes105 views3 answers
How to project specific field mongodb nodejs
Javascript Node.js
5 votes98 views2 answers
Install ejs nodejs
Javascript Node.js
0 vote97 views2 answers
How to access css and js with nodejs
Javascript Node.js
6 votes115 views1 answer
Node server start using pm2
Javascript Node.js
0 vote103 views1 answer
Node app listen change ip
Javascript Node.js
23 votes108 views5 answers
Node js server
Javascript Node.js
1 vote103 views1 answer
Nodejs remove unsafe string
Javascript Node.js
6 votes96 views2 answers
Node Sass could not find a binding for your current environment
Javascript Node.js