代码示例:(标识:js_comparison_03)
<!DOCTYPE html>
<html>
<body>

<h1>JavaScript 比较</h1>

<p>把 5 赋值给 x,然后显示比较 (x == "5") 的值:</p>

<p id="demo"></p>

<script>
var x = 5;
document.getElementById("demo").innerHTML = (x == "5");
</script>

</body>
</html>
运行结果: