Js null ==

Javascript is null

var myVar=null;

if(myVar === null){
    //I am null;
}

if (typeof myVar === 'undefined'){
    //myVar is undefined
}

Js null ==

null == null // true
null == undefined // true
null == 0 // false

Null check in javascript

if(!pass || !cpass || !email || !cemail || !user) {
   // Code here
}
// Which will check for empty strings (""), null, undefined, false and the numbers 0 and NaN

Source: stackoverflow.com

Similar codes

0 vote240 views1 answer
Mongodb move documents to another collection
TypeScript
16 votes226 views4 answers
Npx create-next-app typescript
TypeScript
1 vote233 views1 answer
Javascript audio delay
TypeScript
0 vote175 views1 answer
Typescript list
TypeScript
0 vote210 views1 answer
Can ts object be strongly typed?
TypeScript
0 vote219 views3 answers
Typescript optional parameters
TypeScript
1 vote200 views1 answer
How to change static variables in other scripts unity
TypeScript
17 votes216 views1 answer
Angular navigate using component
TypeScript
0 vote213 views1 answer
Ansible facts suse
TypeScript
1 vote239 views1 answer
Adoni db:seed
TypeScript