How to check if a resource exists in Javascript?

@Fran wrote:

Hi!

Is there anyway to check if a resource exists in Javascript? I thought I could use jsb.fileUtils.isFileExists but after looking at the source code I really doubt it would work:

/**
 * @function isFileExist
 * @param {String} arg0
 * @return {bool}
 */
isFileExist : function (str)
{
    return false;
},

Any ideas?

Many thanks in advance!

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