CODEWITHSUNDEEP
javascriptregex
Fluidbyte
Fluidbyte

Reputation: 5210

Regex to return array of URL parameters

I've seen a number of posts on matching/replacing a path like:

/login/:id/:name

However, I'm trying to figure out how I can return an array containing only the names of the params; id, name

I've got the Regex down: /:[^\s/]+/g, "([\\w-]+)" just struggling with the match.

Upvotes: 1

Views: 271

Answers (1)

elclanrs
elclanrs

Reputation: 94101

You need to loop because match won't grab capture groups in a global regex, so you'll end up having some extra character you don't need:

var url = '/login/:id/:name';

var res = [];
url.replace(/:(\w+)/g, function(_, match) {
  res.push(match);
});

console.log(res); //=> ["id", "name"]

You can also use this helper:

String.prototype.gmatch = function(regex) {
  var result = [];
  this.replace(regex, function() {
    var matches = [].slice.call(arguments, 1, -2);
    result.push.apply(result, matches);
  });
  return result;
};

var res = url.gmatch(/:(\w+)/g); //=> ["id", "name"]

Upvotes: 1

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