how to strip out part of a string in a javascript array

Question

I have several arrays that are built similar to this:

exampleArray=new array(
"A01 - Blah Blah Blah",
"A01A - Blah Blah Blah Blah")

I'm using these Arrays to populate options in a form and I need to strip out everything after the first space(ie " - Blah Blah Blah") for the values of a given option. The options and values are currently being generated with this code:

for(i=0; i<optionStepTwo.length; i++) {
    elementStepTwo.options[elementStepTwo.options.length] = 
            new Option(optionStepTwo[i], optionStepTwo[i]);
};

Answer 1

您可以在“”（空格）之后进行拆分 ，例如：

var desiredOption = optionStepTwo[i].split(" ")[0]

Answer 2

要在第一个空格处截断字符串：

var myStringBeforeFirstSpace = myString.split(" ")[0];

Answer 3

If you are trying to split only at the first space.

var string = 'A01A - Blah Blah Blah Blah';
var firstSpace = string.indexOf(' ');
alert(string.substr(0, firstSpace));​​​​​​​​​​​​​​​​​​​​​​​​​

Working Example