JavaScript gets parameters from URL

How to get the parameters from the URL is a very basic problem. First assume that the URL is legal, code as follows, welcome you big code Review.

1. You can use a match and loop split

function findqueriesfromurl (URL) {    var regex, matches, I, length, pair, result = {}, query;     if return ;     =/\w+\=\w*/g;     = Url.match (regex);      for (i = 0, length = matches.length;i<length;i++) {        = matches[i].split (' = ');        Result[decodeuricomponent (pair[0])] = decodeURIComponent (pair[1]);     }         return result;}

2. You can use EXEC to get all the groupings,

function findqueriesfromurl (URL) {    var regex, result = {}, match;     if return ;     =/(\w+) \= (\w*)/g;//No/g will die loop.      while (match = regex.exec (URL)) {
        result[decodeuricomponent (match[1])] = decodeURIComponent (match[2]);    }     return result;}

It is important to note that exec only iterates over the same calling object and the reference of the same string as the argument , otherwise it may die loops, such as the following code:

 while (match = (/(\w+) \= (\w*)/g). EXEC (URL)) {result[match[1]] = match[2];}

aside, the EXEC function loops back all of the match's objects, such as calling

(function  excute (URL) {    var regex, result = {}, match, i = 0;     =/(\w+) \= (\w*)/g;      while (I <) {        i+ +;        Console.log (regex.exec (URL));    }         return result;}) (' a=b ');

Will loop through the output of a match object and NULL, as follows:

["A=b", "a", "B", index:0, Input: "A=b"] NULL ["A=b", "a", "B", index:0, Input: "A=b"] NULL ["A=b", "a", "B", index:0, Input: "A=b"] NULL ["A=b", "a", "B", index:0, Input: "A=b"] NULL ["A=b", "a", "B", index:0, Input: "A=b"] NULL

If you remove the g inside the regular expression, the output will become:

["A=b", "a", "B", index:0, Input: "A=b"] ["A=b", "a", "B", index:0, Input: "A=b"] ["A=b", "a", "B", Inde x:0, Input: "A=b"["A=b", "a", "B", index:0, Input: "A=b"] ["A=b", "a", "B", index:0, Input: "A=b"  ["A=b", "a", "B", index:0, Input: "A=b"] ["A=b", "a", "B", index:0, Input: "A=b"] ["A=b", "a", "B" , index:0, Input: "A=b"["A=b", "a", "B", index:0, Input: "A=b"] [

This will not be able to take all the matches.

JavaScript gets parameters from URL