Regex on Javascript attribute name

Question

I would like to create a function to analyse attributes (like data() function does) to select attributes starting with a pattern. Here is an example:

<span data-foo-bar data-foo-foo>my example<span>

I would like to select data-foo-bar and data-foo-foo because it starts with the regex data-foo-*.

I found a lot of way to use regex on attribute value but not directly on the attribute name.

Does anyone have an idea?

http://stackoverflow.com/questions/9543733/jquery-attribute-name-contains — BenG, Apr 21 '16 at 12:43
Thanks for the quick answer. Could you add an example please? — brcebn, Apr 21 '16 at 12:43
"data-foo-bar".match(/^data\-foo/) or without regex just "data-foo-bar".indexOf("data-foo") === 0 — lipp, Apr 21 '16 at 12:43
or even better http://stackoverflow.com/questions/26657398/jquery-how-to-select-value-by-attribute-name-starts-with — BenG, Apr 21 '16 at 12:46
@BenG, I think what I'm looking for it what you've suggested. Thanks! — brcebn, Apr 21 '16 at 12:50

score 0 · Answer 1 · answered Apr 21 '16 at 12:48

0

You can use regex

var isDataFoo = function(name) {
  return name.match(/^data\-foo/) !== null
}

Or just string indexOf

var isDataFoo = function(name) {
  return name.indexOf('data-foo') === 0
}

answered Apr 21 '16 at 12:48

lipp

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I would like to use it directly with `jQuery`. I think @BenG, it's what I was searching. – brcebn Apr 21 '16 at 12:49

Regex on Javascript attribute name

1 Answers1