Check if string begins with something?

javascript string match
n00b0101 picture n00b0101 · Nov 20, 2009 · Viewed 357.5k times · Source

I know that I can do like ^= to see if an id starts with something, and I tried using that for this, but it didn't work. Basically, I'm retrieving a URL and I want to set a class for an element for path names that start in a certain way.

Example:

var pathname = window.location.pathname;  //gives me /sub/1/train/yonks/459087

I want to make sure that for every path that starts with /sub/1, I can set a class for an element:

if (pathname ^= '/sub/1') {  //this didn't work... 
        ...

Answer

Philip Reynolds picture Philip Reynolds · Nov 20, 2009

Use stringObject.substring

if (pathname.substring(0, 6) == "/sub/1") {
    // ...
}

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