Created
May 23, 2012 13:14
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getting url params with coffeescript and jquery
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| # Returns get parameters. | |
| # | |
| # If the desired param does not exist, null will be returned | |
| # | |
| # To get the document params: | |
| # @example value = $(document).getUrlParam("paramName"); | |
| # | |
| # To get the params of a html-attribut (uses src attribute) | |
| # @example value = $('#imgLink').getUrlParam("paramName"); | |
| jQuery.fn.extend | |
| getUrlParam: (strParamName) -> | |
| strParamName = escape(unescape(strParamName)) | |
| if $(this).attr("nodeName") is "#document" | |
| if window.location.search.search(strParamName) > -1 | |
| qString = window.location.search.substr(1,window.location.search.length).split("&") | |
| else if $(this).attr("src") isnt "undefined" | |
| strHref = $(this).attr("src") | |
| if strHref.indexOf("?") > -1 | |
| strQueryString = strHref.substr(strHref.indexOf("?") + 1) | |
| qString = strQueryString.split("&") | |
| else if $(this).attr("href") isnt "undefined" | |
| strHref = $(this).attr("href") | |
| if strHref.indexOf("?") > -1 | |
| strQueryString = strHref.substr(strHref.indexOf("?") + 1) | |
| qString = strQueryString.split("&") | |
| else | |
| return null | |
| return null unless qString | |
| returnVal = (query.split("=")[1] for query in qString when escape(unescape(query.split("=")[0])) is strParamName) | |
| if returnVal.lenght is 0 | |
| null | |
| else if returnVal.lenght is 1 | |
| returnVal[0] | |
| else | |
| returnVal |
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Hi, returnVal.lenght and returnVal.lenght should be .length not .lenght