与 getURLVars() 相对应，用于简化变量

发布于 2024-10-15 23:12:34 字数 372 浏览 4 评论 0原文

我正在使用此函数来抓取我的网址并从中构建变量：

读取页面的 GET URL 变量并将它们作为“关联数组”返回。在 at 时调用该函数 example.html?foo=asdf&bar=jkls 集地图['foo']='asdf' 和地图['bar']='jkls'

我如何添加 for 循环以便这样

foo = map['foo']
bar = map['bar']

？

第一个解决方案不起作用。

原文

I am using this function to scrape my url and build variables from it:

Read a page's GET URL variables and
return them as an "associative array."
Calling the function while at
example.html?foo=asdf&bar=jkls sets
map['foo']='asdf' and
map['bar']='jkls'

how would I add a for loop so that

foo = map['foo']
bar = map['bar']

First solution didn't work.

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单挑你×的.吻 2024-10-22 23:12:34

您可以像这样循环遍历地图

for (var key in map)
{
    window[key] = map[key];
}

这将创建 window[foo] 和 window[bar]，它们与 window.foo 和 window.bar 相同，它们与 foo 和 bar 相同。

编辑：以下是我正在使用的测试页面中的正文内容。 jQuery 应该加载到 head 中，只是因为我用它来初始化我的测试并附加一个单击处理程序，但 for 循环的概念并不依赖于 jQuery。由于我没有地图，因此我在加载文档时自己创建它。从那时起，我将按照我所描述的方式循环遍历地图，并将单击处理程序附加到按钮以测试正确的分配。

    <input type="button" />

    <script type="text/javascript" language="javascript">
        $(document).ready(function(){
            /* You don't need to build the map, you should already have it
            var map = new Object();
            map.foo='bar';
            map.test='meh';
            */

            // This is the loop from my original post
            for (var key in map)
            {
                window[key] = map[key];
            }

            // This is just a debug handler, you wouldn't need it
            $('input[type="button"]').click(function(){
                // This is very annoying, but proves that all three methods of access are valid for both variables
                alert(window['foo']);
                alert(window.foo);
                alert(foo);
                alert(window['test']);
                alert(window.test);
                alert(test);
                return false;
            });
        });
    </script>

You can loop through the map like this

for (var key in map)
{
    window[key] = map[key];
}

This would create window[foo] and window[bar], which are the same as window.foo and window.bar, which are the same as foo and bar.

EDIT: Here are the contents of the body in the test page I'm using. jQuery should be loaded in the head only because I use it to initialize my test and attach a click handler, but the concept of the for loop is not dependent on jQuery. Since I don't have the map coming into me, I am creating it myself when the document loads. From that point, I am looping over the map just as I described and attaching a click handler to a button to test the proper assignment.

    <input type="button" />

    <script type="text/javascript" language="javascript">
        $(document).ready(function(){
            /* You don't need to build the map, you should already have it
            var map = new Object();
            map.foo='bar';
            map.test='meh';
            */

            // This is the loop from my original post
            for (var key in map)
            {
                window[key] = map[key];
            }

            // This is just a debug handler, you wouldn't need it
            $('input[type="button"]').click(function(){
                // This is very annoying, but proves that all three methods of access are valid for both variables
                alert(window['foo']);
                alert(window.foo);
                alert(foo);
                alert(window['test']);
                alert(window.test);
                alert(test);
                return false;
            });
        });
    </script>

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