Answers for "nan in javascript example"

compare NaN in javascript if condititon

// Use isNaN() 
// In javascript compare NaN direct alweys return false
let num1 = Number("Vishal");

// This code never work
if(num1 == NaN){  // Direct compare NaN alweys return false so use isNaN() function
  ....... Your Code .......
}  

// This code work
if(isNaN(num1){
  .........Your Code .......
}

nan javascript

// NaN:  Not a Number in javascript
console.log(parseInt('1.23'));				// 1.23
console.log(parseInt('something'));			// NaN

javascript nan

NaN = Not a number.

nan in js

var val = Number.NaN;