Change MyArray.length() to new method

[eckhchri]

root cause looks like problem within webworlker enviroment.

Workaround:

• JSON.stringify turns an object in to a JSON text and stores that JSON text in a string.
• JSON.parse turns a string of JSON text into an object. -> did not work if DSdata array is filled with real data

convert object to an array: http://api.jquery.com/jQuery.makeArray/ JQuery: isArraylike(obj) Test if its an array: http://jsfiddle.net/kflorence/JUxZA/

Check type of vars via

• typeof "12234"
• http://javascript.info/tutorial/type-detection

• http://stackoverflow.com/questions/1303646/check-whether-variable-is-number-or-string-in-javascript

  function isNumber(o) { return typeof o == "number" || (typeof o == "object" && o.constructor === Number); }

Possible Solution: Object.keys(myObject).length // seems to be working in Firefox and Chrome but not MS Edge

Examples, with different result in FireFox and Chrome for "aTrackList = new Array()": Object.keys(aTrackList).length aTrackList.length

1.) Change for to foreach (http://stackoverflow.com/questions/10563251/length-of-a-javascript-associative-array )

2.) http://api.jquery.com/jquery.each/ 3.) in cases of using "if (aTrackList.length != 0)": https://msdn.microsoft.com/library/d8ez24f2%28v=vs.94%29.aspx array.length() did not provide the number of entries

http://www.shermann.name/2010/11/firefox-and-chrome-different-javascript.html

1. The proper way to loop over an array in javascript is: myArray.forEach( function( i ){ console.log( i ); });