How to pass a variable in array index
i repeat the title because everything is there : How to pass a variable in array index
var xyz = 0;
var somearray = ['a','b','c'];
var content = somearray[xyz]; - **that dont work !**
what 开发者_运维问答should be the RIGHT way to do that ?
Just a stab in the dark here, but perhaps the OP is using inArray and might be asking (indirectly) how to get the intellisense working in whatever tool they're using.
If that's the case, I'm sure someone here can provide a more elegant solution but something similar to the following should work:
var somearray = ['a','b','c'];
var index = $.inArray('a', somearray);
if (index > -1) {
index = isNaN(index) ? 0 : index;
var content = somearray[index];
}
That actually is correct. After executing your code, minus the comment, content contains 'a'.
<html>
<head>
<title>Test</title>
</head>
<body>
<script type="text/javascript">
var xyz = 0;
var somearray = ['a','b','c'];
var content = somearray[xyz];
alert(content);
</script>
</body>
</html>
You should get a nice little alert box that says "a".
加载中,请稍侯......
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