CODEWITHSUNDEEP
javascriptjquery
bernie2436
bernie2436

Reputation: 23921

Is there any way to call "benchmark" in the javascript code

I am trying to understand this javascript code, which extends jquery. I know calling extend on the jquery object will add a tablesorter object to the $ object.

I want to clear the cache on a tablesorter object, something like this

$("#myTable").tablesorter();
$("#myTable").buildParserCache(); //so as to clear the cache. I get undefined is not a function.
$("#myTable").tablesorter().buildParserCache() //also get undefined is not a function

Can someone explain why this is not possible and how to clear the cache. I know I am butting up against some JS design patterns and scope rules and I would like to understand them.

    (function ($) {
    $.extend({
        tablesorter: new
        function () {
            var parsers = [],
                widgets = [];

            this.defaults = {
                ...
            };

            /* debuging utils */

            function benchmark(s, d) {
                log(s + "," + (new Date().getTime() - d.getTime()) + "ms");
            }

           function buildParserCache(table, $headers) {
            if (table.config.debug) {
                var parsersDebug = "";
            }

Upvotes: 0

Views: 45

Answers (1)

Douglas
Douglas

Reputation: 37781

The buildParserCache function is defined inside the function () which starts on the fourth line of that snippet, so it will only be accessible outside the function if it is explicitly exposed - and it looks like it isn't, so that is effectively a private function.

The methods which are exposed appear to be grouped after the /* public methods */ comment.

The this.construct = function function gets further exposed by this:

$.fn.extend({
    tablesorter: $.tablesorter.construct
});

so that is the function that ends up being called when $("#myTable").tablesorter() is called.

Upvotes: 1

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