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 vote300 views1 answer
Typescript not supporting scss
TypeScript
15 votes357 views5 answers
Typescript random int
TypeScript
0 vote293 views1 answer
Ts vue important
TypeScript
1 vote280 views1 answer
Operator '+' cannot be applied to types 'Number' and 'Number'.
TypeScript
11 votes311 views2 answers
How to run resources in ionic
TypeScript
0 vote329 views1 answer
Keyboard events pygame
TypeScript
2 votes285 views1 answer
MySQL cheatsheets
TypeScript
1 vote315 views1 answer
Type script edeode url
TypeScript
2 votes285 views1 answer
React native paper select
TypeScript
0 vote296 views1 answer
How to git pull all projects in a folder
TypeScript