javascript regular expression to match url

Question

I am trying to match a URL that starts with /user/ and ends with any number and slash.

example:

/user/345/

I tried /user/\d{3}, but the interpreter gives me an error at \d.

if (request.url == '/') {
    absPath = './public/index.html';
    serveStatic(response, cache, absPath);
} else if (request.url.match(/user/\d{3})) {}

any suggestions?

My guess would be to use delimiters /. Which means you'll need to escape yours : /\/user\/\d+\// — HamZa
– HamZa, Commented Nov 16, 2013 at 21:06

Ωmega · Accepted Answer · 2013-11-16 22:45:49Z

1

Let's make trailing slash optional:

/\/user\/\d{3}\/?/

or

/\/user\/[0-9]{3}\/?/

answered Nov 16, 2013 at 22:45

Ωmega

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Comments

Nir Alfasi · Accepted Answer · 2013-11-16 22:43:41Z

1

Try this:

var str = "/user/345/";
alert(str.match(/\/user\/\d+\//g) != null);

without the last slash:

alert(str.match(/\/user\/\d+/g) != null);

edited Nov 16, 2013 at 22:43

answered Nov 16, 2013 at 21:07

Nir Alfasi

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2 Comments

swaggyP Over a year ago

this worked but what if I wanted to match "/user/345"... without the slash?

Stewart Over a year ago

Then just remove the final \/ from the regexp. Or add a question mark just after it if you want it to be optional.

Nick · Accepted Answer · 2013-11-16 21:10:53Z

0

You're missing a backslash

request.url.match("/user/\\d{3}")

answered Nov 16, 2013 at 21:10

Nick

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