
/**//*
* This function parses comma-separated name=value argument pairs from
* the query string of the URL. It stores the name=value pairs in
* properties of an object and returns that object.
*/

function getArgs() ...{
var args = new Object();
var query = location.search.substring(1); // Get query string.
var pairs = query.split(","); // Break at comma.
for(var i = 0; i < pairs.length; i++) ...{
var pos = pairs[i].indexOf('='); // Look for "name=value".
if (pos == -1) continue; // If not found, skip.
var argname = pairs[i].substring(0,pos); // Extract the name.
var value = pairs[i].substring(pos+1); // Extract the value.
args[argname] = unescape(value); // Store as a property.
// In JavaScript 1.5, use decodeURIComponent() instead of escape()
}
return args; // Return the object.
}

/**//*
* 使用举例 test.php?x=1&y=2....
*/
var args = getArgs(); // Get arguments.
if (args.x) x = parseInt(args.x); // If arguments are defined...
if (args.y) y = parseInt(args.y); // ... override default values.
if (args.w) w = parseInt(args.w);
if (args.h) h = parseInt(args.h);
if (args.dx) dx = parseInt(args.dx);
if (args.dy) dy = parseInt(args.dy);
if (args.interval) interval = parseInt(args.interval);
本文介绍了一个JavaScript函数,该函数能够从URL的查询字符串中解析出name=value形式的参数,并将其存储为对象属性返回。通过这种方式可以方便地获取并使用URL传递的参数。

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