Javascript 使用jquery拆分数组？
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array split using jquery?
提问by Carlos
i have some value stored in array and i wana split them and wana know length of its contains value but when i am running function it is not working
我有一些值存储在数组中，我想拆分它们，并且知道其包含值的长度，但是当我运行函数时，它不起作用
<head>
<script type="text/javascript" src="jquery.js"></script>
<script type="text/javascript">
$(function(){
var valData= ['songs','video','movie','games','other'];
var valNew=valData.split(',');
for(i=0;i<valNew.length;i++);
alert(valNew.length)
})
</script>
</head>
<body>
<select id="me"></select>
</body>
回答by Kevin Bowersox
Split is used to separate a delimited string into an array based upon some delimiter passed into the split function. Your values are already split into an array. Also your for loop syntax is incorrect.
Split 用于根据传递给 split 函数的某些分隔符将分隔的字符串分成数组。您的值已拆分为一个数组。您的 for 循环语法也不正确。
Split Documentation: https://developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/split
拆分文档：https: //developer.mozilla.org/en/JavaScript/Reference/Global_Objects/String/split
Corrected code:
更正的代码：
$(function(){
var valData= "songs,video,movie,games,other";
var valNew=valData.split(',');
for(var i=0;i<valNew.length;i++){
alert(valNew.length)
}
});
回答by elclanrs
You don't need to split anything, it's already an array. And your for loop syntax is wrong...
你不需要拆分任何东西，它已经是一个数组。而你的 for 循环语法是错误的...
for (var i = 0; i < valData.length; i++) {
alert(valData[i].length);
}
回答by Tats_innit
Hiya demohttp://jsfiddle.net/YCarA/8/
Hiya演示http://jsfiddle.net/YCarA/8/
2 things are wrong
2件事是错误的
1) for loop.
1) for 循环。
2) your valDatais array it should be string for split to format as array.
2）你valData是数组它应该是字符串拆分为数组格式。
jquery code
查询代码
$(function(){
var valData = "songs,video,movie,games,other";
var valNew = valData.split(',');
for(var i=0;i<valNew.length;i++){
alert(valNew.length);
}
});?
回答by Shaikh Farooque
Kmb385 is right. Your data is you can not split to array it is already separated.
Kmb385 是对的。您的数据是您无法拆分为已分离的数组。
Also your for loop is faulty the correct one is
您的 for 循环也有问题，正确的是
for(var i=0;i<valNew.length;i++)
alert(valNew[i].length);
回答by tusar
The jQuery.each()way :
该jQuery.each（）方法：
var valData = ["songs","video","movie","games","other"];
$.each(valData, function(key, value) {
alert("Index ---> " + key + ' & length of item ---> ' + value.length);
});
