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addEventListener not working in IE8

... Try: if (_checkbox.addEventListener) { _checkbox.addEventListener("click", setCheckedValues, false); } else { _checkbox.attachEvent("onclick", setCheckedValues); } Update:: For Internet Explorer versions prior to IE9, attach...
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How do I concatenate two lists in Python?

... @Daniel it will create a new list with a shallow copy of the items in the first list, followed by a shallow copy of the items in the second list. Use copy.deepcopy to get deep copies of lists. – Daniel G Apr 19 '12 at 14:51 ...
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How do I add a simple onClick event handler to a canvas element?

... attaches a click event to the canvas element, and then pushes one shape (called an element in my code) to an elements array. You could add as many as you wish here. The purpose of creating an array of objects is so we can query their properties later. After all the elements have been pushed onto t...
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Find out how much memory is being used by an object in Python [duplicate]

...and internal structures related to object types and garbage collection. Finally, some python objects have non-obvious behaviors. For instance, lists reserve space for more objects than they have, most of the time; dicts are even more complicated since they can operate in different ways (they have a ...
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What does %w(array) mean?

....], curly braces %w{...} or even something like exclamation marks %w!...!. All of these have the same behavior (returning an array). – ryanb Aug 13 '09 at 21:40 146 ...
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Convert an image (selected by path) to base64 string

...e to retrieve the base64 string public static string ImageToBase64(string _imagePath) { string _base64String = null; using (System.Drawing.Image _image = System.Drawing.Image.FromFile(_imagePath)) { using (MemoryStream _mStream = new MemoryStream()) ...
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Dynamically load a JavaScript file

How can you reliably and dynamically load a JavaScript file? This will can be used to implement a module or component that when 'initialized' the component will dynamically load all needed JavaScript library scripts on demand. ...
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How do you test that a Python function throws an exception?

...t ahold of the actual Exception object thrown: import unittest def broken_function(): raise Exception('This is broken') class MyTestCase(unittest.TestCase): def test(self): with self.assertRaises(Exception) as context: broken_function() self.assertTrue('This i...
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How to list all tags along with the full message in git?

I want git to list all tags along with the full annotation or commit message. Something like this is close: 8 Answers ...
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Xcode changes unmodified storyboard and XIB files

...ument based on the logical tree structure, clears the storyboard file and calls XMLDataWithOptions: to fill the file again. Because sets do not preserve the order of their elements, even the slightest modification could change the whole storyboard XML file. Why does the class tag disappear or reappe...