JS operation URL

CodeIt is very simple. The main idea is to parse the URL parameter into a JS object and then add, delete, modify, and query operations ~, Take notes here.

 VaR Lg = ( Function  (LG ){  VaR Objurl = Function  (URL ){  This . Ourl = URL | Window. Location. href;  This . Href = ""; //  ? Previous section          This . Params = {}; // URL parameter object          This . Jing = ""; //  # And later sections          This  . INIT ();}  //  Analyze the URL to get? This. href is saved before, and the parameter is parsed as this. Params object. Objurl. Prototype. init = Function  (){  VaR STR = This  . Ourl;  VaR Index = Str. indexof ("#");  If (Index> 0 ){  This . Jing = Str. substr (INDEX); Str = Str. substring (0 , Index);} Index = Str. indexof ("? " );  If (Index> 0 ){  This . Href = Str. substring (0 , Index); Str = Str. substr (index + 1 ); VaR Parts = Str. Split ("&" );  For ( VaR I = 0; I <parts. length; I ++ ){  VaR KV = parts [0]. Split ("=" );  This . Params [kV [0] = kV [1 ] ;}}  Else  {  This . Href = This . Ourl;  This . Params = {};}}  //  Just modify this. Params Objurl. Prototype. Set = Function  (Key, Val ){  This . Params [Key] = Val ;}  //  Just set this. Params Objurl. Prototype. Remove = Function  (Key ){  This . Params [Key] = Undefined ;}  //  URL after the three parts Objurl. Prototype. url = Function  (){  VaR Strurl = This  . Href;  VaR Objps = []; //  Here we use arrays to organize and then perform the join operation.          For ( VaR K In  This  . Params ){  If ( This  . Params [k]) {objps. Push (K + "=" + This  . Params [k]) ;}}  If (Objps. length> 0 ) {Strurl + = "? "+ Objps. Join ("&" );}  If ( This . Jing. length> 0) {Strurl + = This  . Jing ;}  Return  Strurl ;}  //  Obtain the parameter value. Objurl. Prototype. Get = Function  (Key ){  Return   This  . Params [Key];} LG. url = Objurl;  Return LG;} (LG | | {}));

LG is just the namespace of my personal common Js. Call:

  var  myurl =  New  LG. URL ("http://www.baidu.com? A = 1 "); myurl. set ( "B", "hello");  //   added B = Hello   alert ( myurl . URL (); myurl. remove ( "B"); ///   B   alert (myurl. get ( "A"); ///   take the value of parameter A. Here we get 1    myurl . set ( "A", 23); ///   modify the value of a to 23   alert ( myurl . URL ();