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What are the mathematical/computational principles behind this game?

My kids have this fun game called Spot It! The game constraints (as best I can describe) are: 9 Answers ...
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How to post JSON to PHP with curl

I may be way off base, but I've been trying all afternoon to run the curl post command in this recess PHP framework tutorial. What I don't understand is how is PHP supposed to interpret my POST, it always comes up as an empty array. ...
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How to write multiple line string using Bash with variables?

How can I write multi-lines in a file called myconfig.conf using BASH? 6 Answers 6 ...
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What is the difference between ELF files and bin files?

...ded loader format ELf file ,what is the difference between the two , especially the utility of ELF file. 4 Answers ...
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MySQL CONCAT returns NULL if any field contain NULL

...es: it returns the first non-NULL value parameter passed to it (or NULL if all parameters are NULL). By passing an empty string as the second parameter, you are guaranteeing it will not return NULL. – Jo. Mar 10 '17 at 17:03 ...
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How can I remove a key and its value from an associative array?

...oop, then you need to prepend an ampersand to your enumeration variable to allow write access. – FreeAsInBeer Jul 30 '12 at 21:20 1 ...
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What is the motivation for bringing Symbols to ES6?

... Most languages (all mainstream ones afaik) provide some mechanism, usually reflection, to get access to private anyway. – Esailija May 14 '14 at 10:58 ...
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Add new item count to icon on button - Android

...veloper. I need to implement design shown below. I already have functional app but wonder how to even approach this? Particulary, I'm interested in how to show Number of "New" items under tabs. What I KNOW how to do - is create new icons with red dots and just display them when new stuff available. ...
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How to start working with GTest and CMake

...that I just tested. It downloads directly from the web, either a fixed tarball, or the latest subversion directory. cmake_minimum_required (VERSION 3.1) project (registerer) ################################## # Download and install GoogleTest include(ExternalProject) ExternalProject_Add(gtest ...
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What does template mean?

... template<void (*F)()> struct FunctionWrapper { static void call_it() { F(); } }; // pass address of function do_it as argument. void do_it() { } FunctionWrapper<&do_it> test; Template reference parameter (passing an integer) template<int &A> struct SillyExample { ...