每天CookBook之JavaScript-022-优快云博客

本文通过实例演示了如何利用JavaScript中的splice方法进行数组元素的删除、替换等操作，并展示了如何通过循环来批量修改数组中的特定元素。

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splice的使用
使用splice删除元素
使用splice删除替换元素

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>022</title>
</head>
<body>
    
</body>
<script type="text/javascript">
var animals = new Array("dog","cat","seal","walrus","lion","cat");

console.log(animals.splice(animals.indexOf("walrus"),1));
console.log(animals.splice(animals.lastIndexOf("cat"),1,"monkey"));
console.log(animals.toString());

var animals = ["cat","walrus","lion", "cat"];
animals.splice(-1,1,"monkey");
console.log(animals);

var animals = ["cat","walrus","lion", "cat"];
animals.splice(2);
console.log(animals);

var animals = ["cat","walrus","lion", "cat"];
animals.splice(2,1,"zebra","elephant");
console.log(animals);

var charSets = ["ab","bb","cd","ab","cc","ab","dd","ab"];

while(charSets.indexOf("ab")!=-1){
    charSets.splice(charSets.indexOf("ab"),1,"**");
}
console.log(charSets);

while(charSets.indexOf("**")!=-1){
    charSets.splice(charSets.indexOf("**"),1);
}
console.log(charSets);
</script>
</html>

转载于:https://www.cnblogs.com/4thing/p/5658417.html