每天CookBook之JavaScript-020

  • 使用数组搜索
<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>020</title>
</head>
<body>
    
</body>
<script type="text/javascript">
var animals = new Array("dog","cat","seal","elephant","walrus","lion", "cat");
console.log(animals.indexOf("elephant"));
console.log(animals.lastIndexOf("cat"));
var nums = [2, 4, 19, 15, 183, 6, 7, 1, 1];
var over = nums.findIndex(function(element){
    return (element >= 100);
});
console.log(over);
</script>
</html>
posted @ 2016-07-09 22:53  4Thing  阅读(89)  评论(0)  编辑  收藏  举报