Parsing query string in javascript
Well there are hell lot of solution out there for parsing query strings in javascript, but still /me managed to make my own function!
params = (function () { res = {}; window.location.search.replace("?","").split('&').map( function (q) { var v = q.split('='); res[v[0]] = v[1]; }); return res; })();
Let's break it down!
The above code is an immediate function invokation that results a result object, which is stored in params.
We may pass params to a javascript like http://example.com/show.js?query_string
Where the query_string is a key, value pair like : field1=value1&field2=value2&field3=value3...
For better understanding, consider an example where the window.location is something like below :
http://www.example.com/post.php?foo=bar&hello=world
Now, window.location.search.replace("?","").split('&')
will result an array like ["foo=bar", "hello=world"]
i.e after filtering "?" and splitting over "&"
The resultant array is applied with a function which splits each element of an array with '=' and the key, value pair is populated to the result object and then finally the result object is returned, which gets assigned to params object.
JSON.stringify(params) "{"foo":"bar","hello":"world"}" params['foo'] 'bar' params['hello'] 'world'
Update 0 MDN
// Simple regular expression to match http / https / ftp-style URLs. var parsedURL = /^(\w+):\/\/([^\/]+)\/(.*)$/.exec(url); if (!parsedURL) return null; var [, protocol, fullhost, fullpath] = parsedURL;
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