Ui-router route parameter with regex

Question

I feel like this is simple but I can't get it to work...

I am using Ui-Router 2.11 which includes optional parameters with regex expressions.

I have this url which works

'/event/{eventId:[0-9]}'

it filters out everything that isn't numeric, however it only works for 1 character of input (so only 0 through 9).

I want to replace it with an expression that checks to make sure all characters in the input are numeric so I can have any input as long as it's all numbers.

I tried using expressions from this thread

'/event/{eventId:^[0-9]+$}'

but it doesn't work. The other examples include forward slashes which I can't use(via the warning in the ui-router docs). This feels like it should be incredibly simple, what am I doing wrong?

try removing the $ sign.

vks
– vks

2014-09-05 13:56:00 +00:00
Commented Sep 5, 2014 at 13:56 — vks
– vks, Commented Sep 5, 2014 at 13:56

Elias Van Ootegem · Accepted Answer · 2014-09-05 13:58:57Z

6

Judging by the linked documentation, I think either one of these expressions will do the trick:

'/event/{eventId:[0-9]+}'//match 1 or more digit
'/event/{eventId:[0-9]{1,}}'//same as above, alternative notation

If possible, I would replace [0-9] with \d, though. It just looks cleaner.

answered Sep 5, 2014 at 13:58

Elias Van Ootegem

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2 Comments

Matt Foxx Duncan Over a year ago

That worked perfectly! Why does the dollar sign trip it up though? From what I can tell it's supposed to signify the end of the string -- is it because I may have more input in the URL after the parameter I'm looking for?

Elias Van Ootegem Over a year ago

@MattFoxxDuncan: I'm looking through the source ATM. Your patterns are escaped like so: ` var result = string.replace(/[\\[]\^$*+?.()|{}]/g, "\\$&");. It would seem that the $` sign is actually escaped, matching a literal $. Likely because the parameter needn't be the end of the URI (trailing slashes, GET params or a # anchor should be allowed). Not sure yet, though. Either way, you're defining rules. If the rule is \d+, that's enough: the value must be all-numeric. Beginning and end of the string are irrelevant in that respect

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