HTML code
| The code is as follows |
Copy Code |
<DL class= "Forum_0_1_3" >
<dt>something</dt>
<dd>do something</dd>
</dl>
<DL class= "Forum_0_1_4_7" >
<dt>something</dt>
<dd>do something</dd>
</dl>
<DL class= "Forum_0_4" >
<dt>something</dt>
<dd>do something</dd>
</dl> |
Javasctipt (jQuery):
| The code is as follows |
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$ (function () {
$ (' DL '). each (function () {
var classstr = $ (this). attr (' class ');
if (Classstr.indexof ("1") > 0) {
Console.log ("This class contains 1");
}
if (Classstr.indexof ("4") > 0) {
Console.log ("This class contains 4");
}
if (Classstr.indexof ("7") > 0) {
Console.log ("This class contains 7");
}
});
}) |
The IndexOf () method is sensitive to case sensitivity, so you need to be aware of the case of retrieving strings when retrieving them.
Instance:
| The code is as follows |
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<script type= "Text/javascript" >
var str= "Ant College _http://www.111cn.net"
document.write (Str.indexof ("ant") + "<br/>")
document.write (Str.indexof ("cn") + "<br/>")
document.write (Str.indexof (". com"))
</script> |
Output results:
0
-1
27
