在javascript中获取特定的字符串部分

Question

I have a javascript string like "firstHalf_0_0_0" or secondHalf_0_0_0". Now I want to get the string before the string "Half" from above both strings using javascript.Please help me.

Thanks.

Answer 1

var myString = "firstHalf_0_0_0";
var parts = myString.split("Half");
var thePart = parts[0];

Answer 2

var str = 'firstHalf_0_0_0',
    part = str.match(/(\w+)Half/)[1];

alert(part); // Alerts "first"

Answer 3

var str = "firstHalf.....";
var index = str.indexOf("Half");
var substring = str.substr(0, index);

jsFiddle demo.

Answer 4

Working example here for your particular case.

http://jsfiddle.net/7kypu/3/

cheers!

Answer 5

Using this you can get any particular part of string.

var str= 'your string';
var result = str.split('_')[0];