When the JS parent page invokes the child page data, the child page passes through the parent page The parameter callback the parent page concrete method

Write code today found that the same page multiple places need to call the same child page, if more than one method call, the same sub-page callback parent page method will be a problem, so check the information, let this function generalized, according to specific method callback specific parent page method, by the way, I hope that later can be useful, Maybe to help people in need of help.

Use the eval() function here

Definition and usage

The eval () function computes a string and executes the JavaScript code in it.

The path to the child page called by the parent page (the path to the child page) is as follows

Http://localhoust:8080/oss-portlet/html/util/area.html?oid=4&name= Test &callback=callbackdistrict

callback: parameter is the specific method name of the parent page

The child page calls the parent page of the callback specified method

eval (' Window.opener ' + getparams ("callBack") + ' (\ ' + ids + ' \ ', \ ' + names + ') ');

Window.close ();

/**
* Get page Path parameter values
*/
function Getparams (key) {
var href = window.document.location.href;
if (Href.indexof ("?")! =-1) {
var paramstr = href.substring (Href.indexof ("?") + 1, href.length);
if (Paramstr.indexof (key + "=")! =-1) {
Paramstr = paramstr.substring (paramstr.indexof (key + "="),
Paramstr.length);
if (Paramstr.indexof ("&")! =-1) {
Return paramstr.substring (paramstr.indexof ("=") + 1, paramstr
. IndexOf ("&"));
} else {
Return paramstr.substring (paramstr.indexof ("=") + 1,
Paramstr.length);
}
} else {
Return "";
}
}
}

When the JS parent page invokes the child page data, the child page passes through the parent page The parameter callback the parent page concrete method