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Logical Operators, || or OR?

... no "better" but the more common one is ||. They have different precedence and || would work like one would expect normally. See also: Logical operators (the following example is taken from there): // The result of the expression (false || true) is assigned to $e // Acts like: ($e = (false || true...
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How to prevent robots from automatically filling up a form?

...attacks) way of solving anti-spam is tracking the time between form-submit and page-load. Bots request a page, parse the page and submit the form. This is fast. Humans type in a URL, load the page, wait before the page is fully loaded, scroll down, read content, decide wether to comment/fill in th...
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How to get the input from the Tkinter Text Widget?

...) The -1c deletes 1 character, while -2c would mean delete two characters, and so on. def retrieve_input(): input = self.myText_Box.get("1.0",'end-1c') share | improve this answer | ...
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Entity Framework and Connection Pooling

...ecently started to use the Entity Framework 4.0 in my .NET 4.0 application and am curious about a few things relating to pooling. ...
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In Windows Azure: What are web role, worker role and VM role?

... EDIT 3/3/2013 - updated to reference UDP endpoints, Virtual Machines, and more languages EDIT 6/6/2013 - updated to reflect the discontinuation of VM Role, and update to web/worker role baseline OS images to Windows Server 2012 Good link by @Vladimir. A bit more clarification: All roles (web,...
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How should one use std::optional?

I'm reading the documentation of std::experimental::optional and I have a good idea about what it does, but I don't understand when I should use it or how I should use it. The site doesn't contain any examples as of yet which leaves it harder for me to grasp the true concept of this object. When...
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Function in JavaScript that can be called only once

...y once, in each time after the first it won't be executed. I know from C++ and Java about static variables that can do the work but I would like to know if there is a more elegant way to do this? ...
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PHP - Extracting a property from an array of objects

... this is the correct solution and will lead to the fact that every upcoming maintainer will be "wtf"'d :D – Andreas Klinger Jul 13 '09 at 11:56 ...
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Why does “return list.sort()” return None, not the list?

... l = sorted(l.append('2')) (I just added semi-colon so you could cut/paste and run) – JGFMK May 30 '18 at 9:54 ...
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What's an easy way to read random line from a file in Unix command line?

What's an easy way to read random line from a file in Unix command line? 13 Answers 13...