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TypeError: Cannot read property 'then' of undefined

Above function return a string like "failed". However, when I try to run then function on it, it will return error of 2 Ans...
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How to switch back to 'master' with git?

...ckout the branch: git checkout master See the Git cheat sheets for more information. Edit: Please note that git does not manage empty directories, so you'll have to manage them yourself. If your directory is empty, just remove it directly. ...
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When should I use ugettext_lazy?

I have a question about using ugettext and ugettext_lazy for translations. I learned that in models I should use ugettext_lazy , while in views ugettext. But are there any other places, where I should use ugettext_lazy too? What about form definitions? Are there any performance diffrences betwe...
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Base64: What is the worst possible increase in space usage?

If a server received a base64 string and wanted to check it's length before converting,, say it wanted to always permit the final byte array to be 16KB. How big could a 16KB byte array possibly become when converted to a Base64 string (assuming one byte per character)? ...
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How to delete (not cut) in Vim?

How can I delete a line without putting it into my default buffer? 6 Answers 6 ...
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Python Dictionary to URL Parameters

I am trying to convert a Python dictionary to a string for use as URL parameters. I am sure that there is a better, more Pythonic way of doing this. What is it? ...
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How do I access the request object or any other variable in a form's clean() method?

I am trying to request.user for a form's clean method, but how can I access the request object? Can I modify the clean method to allow variables input? ...
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Selenium WebDriver: Wait for complex page with JavaScript to load

... a web application to test with Selenium. There is a lot of JavaScript running on page load. This JavaScript code is not so well written but I can't change anything. So waiting for an element to appear in the DOM with findElement() method is not an option. I want to create a generic function i...
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How to set the maxAllowedContentLength to 500MB while running on IIS7?

... According to MSDN maxAllowedContentLength has type uint, its maximum value is 4,294,967,295 bytes = 3,99 gb So it should work fine. See also Request Limits article. Does IIS return one of these errors when the appropriate section...
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How can I switch my git repository to a particular commit

In my git repository, I made 5 commits, like below in my git log: 5 Answers 5 ...