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Is there any way I can define a variable in LaTeX?

... add the following to you preamble: \newcommand{\newCommandName}{text to insert} Then you can just use \newCommandName{} in the text For more info on \newcommand, see e.g. wikibooks Example: \documentclass{article} \newcommand\x{30} \begin{document} \x \end{docume...
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Convert Data URI to File then append to FormData

...ers. Part of the task is to extract an image file from the canvas object and append it to a FormData object for upload. ...
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Not able to type in textfield in iphone simulator using Mac Keyboard?

I'm working on a basic iOS app which supports both portrait and landscape modes. When the iPhone simulator keyboard is open in landscape and I'm switching the app to portrait mode I'm unable to type anything in any text field using my Mac physical keyboard. ...
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Select all elements with “data-” attribute without using jQuery

...le (though not an array). Looping with for in will iterate over the length and item properties. Instead, use for of to iterate over properties designed to be iterated over – Solvitieg Mar 21 '19 at 4:30 ...
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How to remove duplicate values from a multi-dimensional array in PHP

... Because of unserialize this is slower and slower the larger and more complex the array is. There is a reason I used array_intersect_key (half a year before this answer). – OIS Feb 8 '13 at 23:00 ...
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Unit Testing bash scripts

...va code. Since we are trying to Test Everything That Could Possibly Break, and those bash scripts may break, we want to test them. ...
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How do you create different variable names while in a loop? [duplicate]

...a, but... for x in range(0, 9): globals()['string%s' % x] = 'Hello' and then for example: print(string3) will give you: Hello However this is bad practice. You should use dictionaries or lists instead, as others propose. Unless, of course, you really wanted to know how to do it, but d...
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How to duplicate virtualenv

...t to install (or have already installed in case of file generated by pip), and what versions they're at. To generate a requirements file, go into your original virtualenv, and run: pip freeze > requirements.txt This will generate the requirements.txt file for you. If you open that file up in ...
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Is there a way to measure how sorted a list is?

...Formally, let A(1), A(2), ..., A(n) be a sequence of n numbers.If i < j and A(i) > A(j), then the pair (i,j) is called an inversion of A. The inversion number of a sequence is one common measure of its sortedness.Formally, the inversion number is defined to be the number of inversions, that is...
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Tricks to manage the available memory in an R session

...ive R session? I use the functions below [based on postings by Petr Pikal and David Hinds to the r-help list in 2004] to list (and/or sort) the largest objects and to occassionally rm() some of them. But by far the most effective solution was ... to run under 64-bit Linux with ample memory. ...