Summary of several methods for JS to Obtain Address Bar Parameters

Copy codeThe Code is as follows:
<Script>
// Obtain the parameter array in the address bar
Function getUrlParams (){
Var search = window. location. search;
// Write data dictionary
Var tmparray = search. substr (1, search. length). split ("&");
Var paramsArray = new Array;
If (tmparray! = Null ){
For (var I = 0; I <tmparray. length; I ++ ){
Var reg =/[= | ^ =]/; // use = to split, but not =
Var set1 = tmparray [I]. replace (reg ,'&');
Var tmpStr2 = set1.split ('&');
Var array = new Array;
Array [tmpStr2 [0] = tmpStr2 [1];
ParamsArray. push (array );
}
}
// Return the parameter Array
Return paramsArray;
}

// Obtain the parameter value based on the parameter name
Function getParamValue (name ){
Var paramsArray = getUrlParams ();
If (paramsArray! = Null ){
For (var I = 0; I <paramsArray. length; I ++ ){
For (var j in paramsArray [I]) {
If (j = name ){
Return paramsArray [I] [j];
}
}
}
}
Return null;
}

Function test ()
{
Alert ("v =" + getParamValue ("name "));
}

Var test1 = function ()
{
// Alert ("v1 =" + getParamValue ("name "));
// Alert ("v2 =" + GetUrlParam ("name "));
// Alert ("v3 =" + GetUrlParms ("name "));
Alert ("v4 =" + getQuery ("name "));
}

Function GetUrlParam (paramName ){
Var url = document. URL; // URL parameter, which can be obtained by using document. URL. There are too many methods.
Var oRegex = new RegExp ('[\? &] '+ ParamName +' = ([^ &] +) ',' I ');
// Var oMatch = oRegex.exe c (window. top. location. search); // obtain the URL of the current window.
Var oMatch = oRegex.exe c (url );
If (oMatch & oMatch. length> 1)
Return oMatch [1]; // return Value
Else
Return '';
}

// Obtain url parameters
Function GetUrlParms (name ){
Var reg = new RegExp ("(^ | \\? | &) "+ Name +" = ([^ &] *) (\ s | & | $) "," I ");
If (reg. test (location. href ))
Return unescape (RegExp. $2. replace (/\ +/g ,""));
Return "";
}
Var getQuery = function (I ){

Var j = location. search. match (new RegExp ("[? &] "+ I +" = ([^ &] *) (&?) "," I "));

Return j? J [1]: j

};
</Script>

JS: <br>

<A href = "#" onclick = "test1 ();"> obtain the parameter value </a>