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javascriptnode.jsfunctioncheerio

Cheerio: need to pass around $ along with elements?

I have several utitity functions, that operate on cheerio objects. To nearly every one of these functions I have to pass $ along with the element itsself.

Example:

function aUtilityFunc($, cheerioEl) { // <- $ in the params
    return cheerioEl.each(function (i, child) {
        // i do not want to do this:
        $(child).attr("something", $(child).attr("something") + "something");

        // i would rather do this and omit the $ in the params (like with global jquery doc):
        var $ = cheerioEl.$;
        $(child).attr("something", $(child).attr("something") + "something");
    });
}

Is there an elegant solution to this problem that would allow me to pass only 1 param to my functions? (I don't mean wrapping them into an object literal :>). Because frankly, it's not that nice this way (unless I'm overlooking something).

Solution

  • Seems like you could just do something like this:

    var $ = require('cheerio');

function aUtilityMethod(cEls) {
    cEls.each(function(i, a) {
        console.log("li contains:", $(a).html());
    });
}


// testing utility method
(function() {
    var fakeDocument = "<html><body><ol><li>one</li><li>two</li></ol></body></html>",
        myDoc = $(fakeDocument),
        myOl = $("ol", myDoc.html());

    aUtilityMethod(myOl.find("li"));
})();