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RegEx to exclude a specific string constant [duplicate]

Can regular expression be utilized to match any string except a specific string constant let us say "ABC" ? Is this possible to exclude just one specific string constant? Thanks your help in advance. ...
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Calculate text width with JavaScript

I'd like to use JavaScript to calculate the width of a string. Is this possible without having to use a monospace typeface? ...
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Repeating characters in VIM insert mode

Is there a way of repeating a character while in Vim's insert mode? For example, say I would like to insert 80 dashes, in something like emacs I would type: ...
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Generate a random letter in Python

...or letters)? The range functionality of random.randint would be nice but having a generator that just outputs a random letter would be better than nothing. ...
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How many threads is too many?

I am writing a server, and I send each action of into a separate thread when the request is received. I do this because almost every request makes a database query. I am using a threadpool library to cut down on construction/destruction of threads. ...
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Utilizing multi core for tar+gzip/bzip compression/decompression

I normally compress using tar zcvf and decompress using tar zxvf (using gzip due to habit). 6 Answers ...
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How can I count the occurrences of a list item?

Given an item, how can I count its occurrences in a list in Python? 25 Answers 25 ...
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Simplest code for array intersection in javascript

What's the simplest, library-free code for implementing array intersections in javascript? I want to write 35 Answers ...
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Sort points in clockwise order?

Given an array of x,y points, how do I sort the points of this array in clockwise order (around their overall average center point)? My goal is to pass the points to a line-creation function to end up with something looking rather "solid", as convex as possible with no lines intersecting. ...
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Bootstrap 3 and Youtube in Modal

I'm trying to use the Modal feature from Bootstrap 3 to show my Youtube video. It works, but I can't click on any buttons in the Youtube video. ...