You can convert NaN to a number by using the direct JavaScript method. But using the isNaN() method can check whether the given number is NaN or not. if isNaN() returns true(means its not a number) you can assign whatever number you need to that variable
<script>
number = NaN;
if (isNaN(number)) number = 0;
console.log(number);
</script>
Convert NaN to number in JavaScript
Simple example code.
<!DOCTYPE html>
<html>
<body>
<script>
num = NaN;
if( isNaN(num) ){
num =1000;
}
console.log(num);
</script>
</body>
</html>
Output:
Using || Operator: If “number” is any falsey value, it will be assigned to 0.
<script>
number = NaN;
number = number || 0;
console.log(number);
</script>Using ternary operator: similar to 1, if NaN it converts to 0.
<script>
number = NaN;
number = number ? number : 0;
console.log(number);
</script>Comment if you have any doubts or suggestions on this JS NaN topic.
Note: The All JS Examples codes are tested on the Firefox browser and the Chrome browser.
OS: Windows 10
Code: HTML 5 Version