Introduction to the use of isNaN of methods for global objects in javascript
- 2020-03-30 01:00:54
- OfStack
<html>
<head>
<title> Global object's isNaN() methods </title>
<script>
document.write(isNaN(123) + "<br/>");//false
document.write(isNaN(-1.23) + "<br/>");//false
document.write(isNaN(5-2) + "<br/>");//false
document.write(isNaN(0) + "<br/>");//false
document.write(isNaN("Hello") + "<br/>");//true
document.write(isNaN("2005/12/12")+ "<br/>");//true
</script>
</head>
<body>
<div id="time"></div>
</body>
</html>