javascript check if is nan
function isNaN(x) {
return x !== x;
};
isNaN(NaN);//truejavascript check if is nan
function isNaN(x) {
return x !== x;
};
isNaN(NaN);//trueisnan in javascript
var s = userInput[0];
if(isNaN(s) !== true)
{
console.log("yes");
}
else
{
console.log("no");
}check if var is NaN
let b=1
let n=readline()
if(isNaN(b)){
console.log("You typed 0!")
}else{
console.log("You did not type 0!")
}nan in js
var val = Number.NaN;Copyright © 2021 Codeinu
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