Answers for "nan function in javascript"

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 .......
}

javascript nan

let value = 0 / 0; // undefined
if (isNaN(value)) value = 0;

nan javascript

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

isnan in javascript

var s = userInput[0];
  if(isNaN(s) !== true)
  {
      console.log("yes");
  }
  else
  {
      console.log("no");
  }

javascript nan

NaN = Not a number.

nan in js

var val = Number.NaN;