Question

I am currently trying to parse parameters from a path to a JavaScript file (inside a script tag). At the moment I know which parameters I expect to be there but instead of looking for the expected params I would rather like to just extract all params given.

包括 Java印文件在内的文字标签实例:

<script type="text/javascript" src="https://url/widget.js?param1=A&param2=bb></script>

在我刚刚做这项工作的时候(每个参数通常):

jQuery( script ).each(function() {
    var script = this;
    if (!script.src) {
        return;
    }    
    var matchKey = script.match(/https://url/widget.js?param1=([A-Z]+)/);
    if (matchKey) {
        oSettings.param1 = matchKey[1];
    }
}

因此,我所需要的是一条可以提取参数名称和所包括管道的价值的节奏。

感谢援助!

Answer 1

测试功能:

function parse_query_vars(text)
{ // Extract name=value pairs from URL query string.
    // Empty object to store name, value pairs.
    var qvars = {},
    // Capture non-empty query string in $1.
        re_q = /?([^#]+)/, // From  ?  up to  #  or EOS.
    // Capture variable name in $1 and value in $2.
        re_nv = /([^=]+)=([^&]*)(?:&(amp;)?|$)/gi,
    // Match array for query string and va=val pairs.
        m =  text.match(re_q),
    // Query string plucked from URL
        q =   ;
    // If there is a query string, copy to q var.
    if (m) q = m[1];
    while (m = re_nv.exec(q)) {
        qvars[m[1]] = m[2];
    }
    return qvars; // Return results in object
}

它首先从URL中提取任何质询,然后从理论上说,在标的上划出名称。在查询后,如果URL有#fragment,则它处理通过<代码>&或和施工而分离的数值。

Answer 2

Use something like this, or this, or this.

他们不仅重新寻找一切解决办法,而且你不一定需要一种reg。这是一个可能无法解决问题的细节。

希望会有所帮助。

Answer 3

(This isn t actually tested)

var scripts = document.getElementsByTagName("script"), i = scripts.length;
var reMatch = /https://url/widget.js/, path;
// find the correct script
do {
    path = scripts[i--].src;
}
while (!reMatch.test(path));

var map = {}, pairs = path.substring(path.indexOf("?") + 1).split("&"), atoms;
i = pairs.length;
// extract the name-value pairs
while (i--) {
    atoms = pairs[i].split("=");
    map[decodeURIComponent(atoms[0])] = decodeURIComponent(atoms[1]);
}

友情链接