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Multiple modals overlay

... After seeing many fixes for this, and none of them were exactly what I needed I've came up with a even shorter solution that is inspired by @YermoLamers & @Ketwaroo. Backdrop z-index fix This solution uses a setTimeout because the .modal-backdrop isn't create...
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What is a plain English explanation of “Big O” notation?

...integers. But a comparison of two algorithms to do arithmetic operations (one multiplication, one addition) will tell you something meaningful; representation: Big-O (in its simplest form) reduces the comparison between algorithms to a single variable. That variable is chosen based on observations...
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Ordering by specific field value first

...ou never know. Second, pay attention to how FIELD() works: it returns the one-based index of the value - in the case of FIELD(priority, "core"), it'll return 1 if "core" is the value. If the value of the field is not in the list, it returns zero. This is why DESC is necessary unless you specify a...
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Pandas DataFrame Groupby two columns and get counts

...ndas as pd df = pd.DataFrame([['A','C','A','B','C','A','B','B','A','A'], ['ONE','TWO','ONE','ONE','ONE','TWO','ONE','TWO','ONE','THREE']]).T df.columns = [['Alphabet','Words']] print(df) #printing dataframe. This is our printed data: For making a group of dataframe in pandas and counter, You...
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Extract file basename without path and extension in bash [duplicate]

... The basename command has two different invocations; in one, you specify just the path, in which case it gives you the last component, while in the other you also give a suffix that it will remove. So, you can simplify your example code by using the second invocation of basename. ...
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How are 3D games so efficient? [closed]

...render, and They take special advantage of your hardware. For instance, one easy optimization you can make involves not actually trying to draw things that can't be seen. Consider a complex scene like a cityscape from Grand Theft Auto IV. The renderer isn't actually rendering all of the buildings...
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How to set downloading file name in ASP.NET Web API

... For anyone curious about the "attachment" disposition type, the full list of disposition types is at iana.org/assignments/cont-disp/cont-disp.xhtml – sfuqua Sep 30 '14 at 18:56 ...
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What's “P=NP?”, and why is it such a famous question? [closed]

...e set of symbols can be written and read. At any given time, the TM is in one of its states, and it is looking at a particular cell on the tape. Depending on what it reads from that cell, it can write a new symbol into that cell, move the tape one cell forward or backward, and go into a different ...
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uppercase first character in a variable with bash

... Despite being more complex than the best scored answer, this one actually does exactly that: 'uppercase first character in a variable'. Best scored answer does not have that results. Looks like simple answers are upvoted more willingly than the correct ones? – Krz...
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SQL select only rows with max value on a column [duplicate]

...me group identifier. I heard that a lot during my career. Actually, it was one the questions I answered in my current job's technical interview. It is, actually, so common that StackOverflow community has created a single tag just to deal with questions like that: greatest-n-per-group. Basically,...