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HTML table with fixed headers?

...isplay a long HTML table such that the column headers stay fixed on-screen and do not scroll with the table body. Think of the "freeze panes" effect in Microsoft Excel. ...
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What are sessions? How do they work?

...lication development, using python. I am coming across the terms 'cookies' and 'sessions'. I understand cookies in that they store some info in a key value pair on the browser. But I have a little confusion regarding sessions, in a session too we store data in a cookie on the user's browser. ...
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What are the differences between GPL v2 and GPL v3 licenses? [closed]

In simple terms, what are the reasons for, and what are the differences between the GPL v2 and GPL v3 open source licenses? Explanations and references to legal terms and further descriptions would be appreciated. ...
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Are the shift operators () arithmetic or logical in C?

... When shifting left, there is no difference between arithmetic and logical shift. When shifting right, the type of shift depends on the type of the value being shifted. (As background for those readers unfamiliar with the difference, a "logical" right shift by 1 bit shifts all the bits ...
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PHP Session Fixation / Hijacking

I'm trying to understand more about PHP Session Fixation and hijacking and how to prevent these problems. I've been reading the following two articles on Chris Shiflett's website: ...
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The new syntax “= default” in C++11

I don't understand why would I ever do this: 5 Answers 5 ...
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TypeScript and field initializers

...ways have come up. Please see the other answers below that have more votes and a better answer. I cannot remove this answer since it's marked as accepted. Old answer There is an issue on the TypeScript codeplex that describes this: Support for object initializers. As stated, you can already do ...
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What is the result of % in Python?

...odulo operator always yields a result with the same sign as its second operand (or zero); the absolute value of the result is strictly smaller than the absolute value of the second operand [2]. Taken from http://docs.python.org/reference/expressions.html Example 1: 6%2 evaluates to 0 because the...
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Why use bzero over memset?

...ucts, like sock_addr_in , or char buffers (that we used to send data back and forth between client and server) the professor instructed us to only use bzero and not memset to initialize them. He never explained why, and I'm curious if there is a valid reason for this? ...
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CSS Box Shadow - Top and Bottom Only [duplicate]

...examples of how to do this, but how can I add a box shadow only to the top and bottom of an element? 5 Answers ...