variables - jQuery - How to remove duplicate parameter on string? (not array) -
i have 2 variable value , character '&' determinate parameter (like url parameter).
note: not parameter url , not array!
variable1 = value1=bla&value2=ble&page=test&value4=blo&test=blu&car=red variable2 = page=index&car=blue&other=yellow i need compare 2 variables , eliminate duplicate parameters, , if have same parameter on variable1 , variable2, need exclude parameter variable1 , use parameter variable2.
like this:
value1=bla&value2=ble&page=index&value4=blo&test=blu&car=blue&other=yellow how this?
i've build jsfiddle out. i've attempted keep vanilla possible , left comments.
quickly – this parses parameter string , replaces duplicate parameter names last value found. couldn't tell needed question; maybe going.
here's jsfiddle code reference:
/** * open console see what's going on */ function parse(str) { // parse split string along & // , loop on result var keyvalues, i, len, el, parts, key, value, result; result = {}; septoken = '&'; keyvalues = str.split('&'); = 0; len = keyvalues.length; for(i; i<len; i++) { el = keyvalues[i]; parts = el.split('='); key = parts[0]; value = parts[1]; // replace duplicate param // last value found result[key] = value; } return result; } function serialize(data) { // serialize loops on data , constructs new string var prop, result, value; result = []; for(prop in data) { if (data.hasownproperty(prop)) { value = data[prop]; // push each seriialized key value array result.push(prop + '=' + value); } } // return resulting array joined on & return result.join("&"); } function run() { // run example var paramstr, data, result; // paramstr has duplicate param, value1 paramstr = 'value1=bla&value1=foop&value2=ble&page=test&value4=blo&test=blu&car=red'; data = parse(paramstr); result = serialize(data); return result; } console.log(run());
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