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Amazon S3 Change file download name

... to mention that it was not me to provide the right answer on Amazon forum and all credits should go to Colin Rhodes ;-) share | improve this answer | follow ...
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Output of git branch in tree like fashion

...it But the full one I have been using is in "How to display the tag name and branch name using git log --graph" (2011): git config --global alias.lgb "log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset%n' --abbrev-commit --date=relativ...
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How do I get a UTC Timestamp in JavaScript?

...at includes the timezone. (I had problems getting that to work in an older Android browser.) Note that getTime() returns milliseconds, not plain seconds. For a UTC/Unix timestamp, the following should suffice: Math.floor((new Date()).getTime() / 1000) It will factor the current timezone offset ...
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What is the purpose of a stack? Why do we need it?

...the stack? I assume you mean the evaluation stack of the MSIL language, and not the actual per-thread stack at runtime. Why is there a transfer from memory to stack or "loading?" On the other hand, why is there a transfer from stack to memory or "storing"? Why not just have them all placed i...
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Static variables in member functions

... Since class A is a non-template class and A::foo() is a non-template function. There will be only one copy of static int i inside the program. Any instance of A object will affect the same i and lifetime of i will remain through out the program. To add an exampl...
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how to split the ng-repeat data with three columns using bootstrap

... The most reliable and technically correct approach is to transform the data in the controller. Here's a simple chunk function and usage. function chunk(arr, size) { var newArr = []; for (var i=0; i<arr.length; i+=size) { newArr.pus...
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How to create a trie in Python

I'm interested in tries and DAWGs (direct acyclic word graph) and I've been reading a lot about them but I don't understand what should the output trie or DAWG file look like. ...
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How can I convert an RGB image into grayscale in Python?

I'm trying to use matplotlib to read in an RGB image and convert it to grayscale. 12 Answers ...
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How to initialize const member variable in a class?

...ion sums it up briefly: A class is typically declared in a header file and a header file is typically included into many translation units. However, to avoid complicated linker rules, C++ requires that every object has a unique definition. That rule would be broken if C++ allowed in-class defini...
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Arduino101(Genuino 101)&App Inventor – RGB LED控制 - 创客硬件开...

繁体中文原文:https://blog.cavedu.com/2017/02/ ... %e6%8e%a7%e5%88%b6/ 本文將介紹如何取得觸碰點的 RGB 參數之後透過 BLE 送給 Arduino 101 來點亮 RGB LED。 App InventorDesigner使用 Canvas 來取得觸碰點座標。兩個連線斷線用的按鈕:Btn_Connect /&n...