Get JavaScripts asynchronously using getScripts

Question

I get some scripts asynchronously on my login page:

        $.when(
                $.getScript("/Scripts/View/scroll-sneak.js"),
                $.getScript("/Scripts/kendo/kendo.custom.min.js"),
                $.Deferred(function (deferred) {
                    $(deferred.resolve);
                })
        ).done(function (res1, res2) {
            if (res1[1] == "success") {

            }
            if (res2[1] == "success") {

            }
            alert('all script loaded...');
        });

I have two queries here:

How can I leverage browser cache here, as getScript always take fresh script.
How can I have promise that this script will be available to all pages on same domain.

Alternate solutions are welcome.

SSA · Accepted Answer · 2014-10-10 08:05:06Z

1

Answer to your first question is set cache true. Jquery documentation page also mentions a way

jQuery.cachedScript = function( url, options ) {

  // Allow user to set any option except for dataType, cache, and url
  options = $.extend( options || {}, {
    dataType: "script",
    cache: true,
    url: url
  });

  // Use $.ajax() since it is more flexible than $.getScript
  // Return the jqXHR object so we can chain callbacks
  return jQuery.ajax( options );
};

// Usage
$.cachedScript( "ajax/test.js" ).done(function( script, textStatus ) {
  console.log( textStatus );
});

For your second question: Please clarify more, what you want to achive?

edited Oct 10, 2014 at 8:05

answered Oct 10, 2014 at 7:51

SSA

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2 Comments

A.T. Over a year ago

what if script has size which can't be cached, then how i maintain it

SSA Over a year ago

If it's not cached then (Highly unlikely until nocache header is set) then it will be requested again. You need not to go that hard on leverage browser caching in this case.

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