tryjsref_some 在线代码实例

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运行代码

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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>W3Cschool教程(w3cschool.cn)</title>
</head>
<body>
<p>点击按钮检测数组中是否有元素大于 18。</p>
<button onclick="myFunction()">点我</button>
<p id="demo"></p>
<script>
var ages = [3, 10, 18, 20];
function checkAdult(age) {
    return age >= 18;
}
function myFunction() {
    document.getElementById("demo").innerHTML = ages.some(checkAdult);
}
</script>
</body>
</html>
 
 
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运行结果
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