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Why does base64 encoding require padding if the input length is not divisible by 3?
What is the purpose of padding in base64 encoding. The following is the extract from wikipedia:
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What is Ember RunLoop and how does it work?
I am trying to understand how Ember RunLoop works and what makes it tick. I have looked at the documentation , but still have many questions about it. I am interested in understanding better how RunLoop works so I can choose appropriate method within its name space, when I have to defer execution o...
load and execute order of scripts
There are so many different ways to include JavaScript in a html page. I know about the following options:
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自动生成Linux下Makefile全攻略（automake原理） - C/C++ - 清泛网 - 专注C/C++及内核技术
...nux编译安装软件的方法的主要步骤及输出结果如下：1、. configure 输出Makefile文件2...本文假定大家对Makefile自动化编译有基本的了解（不了解的最好先熟悉下，参见《Makefile经典教程（入门必备）》），Linux编译安装软件的方法的...
SignalR - Sending a message to a specific user using (IUserIdProvider) *NEW 2.0.0*
...rsion of Asp.Net SignalR, was added a new way of sending a message to a specific user, using the interface "IUserIdProvider".
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CALayer with transparent hole in it
I have a simple view (left side of the picture) and i need to create some kind of overlay (right side of the picture) to this view. This overlay should have some opacity, so the view bellow it is still partly visible.
Most importantly this overlay should have a circular hole in the middle of it so i...
ReactJS: Modeling Bi-Directional Infinite Scrolling
Our application uses infinite scrolling to navigate large lists of heterogenous items. There are a few wrinkles:
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Pointers vs. values in parameters and return values
In Go there are various ways to return a struct value or slice thereof. For individual ones I've seen:
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Clang optimization levels
On gcc, the manual explains what -O3 , -Os , etc. translate to in terms of specific optimisation arguments ( -funswitch-loops , -fcompare-elim , etc.)
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C++ stl stack/queue 的使用方法 - C/C++ - 清泛网 - 专注C/C++及内核技术
C++ stl stack/queue 的使用方法1、stackstack 模板类的定义在<stack>头文件中。stack 模板类需要两个模板参数，一个是元素类型，一个容器类型，但只有元素类型是必要的...1、stack
stack 模板类的定义在<stack>头文件中。
stack 模板类需要...