Tuesday, June 18, 2013

Load JSON Files Synchronously with jQuery

In jQuery, the getJSON operator can load any JSON file, however this operation is done asynchronously. Meaning that, in cases where you need to wait until your data file is loaded, using getJSON method is useless. Here is one way you can achieve your goal of loading JSON files synchronously:

function loadJsonFileSynch()
            url: 'path/to/json/file.json',
            async: false,
            dataType: 'json',
            success: function (response) {
                $.each(response, function(key, val) {
                    // Do processing here


  1. This is deprecated now and will produce a warning
    Synchronous XMLHttpRequest on the main thread is deprecated because of its detrimental effects to the end user's experience.

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