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LINQ with groupby and count
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412
After calling GroupBy, you get a series of groups IEnumerable<Grouping>, where each Groupi...
How to get the instance id from within an ec2 instance?
How can I find out the instance id of an ec2 instance from within the ec2 instance?
32 Answers
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Jasmine.js comparing arrays
... {
it('passes if arrays are equal', function() {
var arr = [1, 2, 3];
expect(arr).toEqual([1, 2, 3]);
});
});
Just for information:
toBe() versus toEqual(): toEqual() checks equivalence. toBe(), on the
other hand, makes sure that they're the exact same object.
...
What is Scala's yield?
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206
It is used in sequence comprehensions (like Python's list-comprehensions and generators, where...
cpuid汇编指令 - C/C++ - 清泛网 - 专注C/C++及内核技术
...86家族CPU都有这个指令我也不是很清楚,但在EFLAGS中的bit 21可以识别CPU是否支持CPUID指令,如下图:
图1
在8086和8088CPU中,FLAGS只有16位长,在80386CPU中,bit 21被保留未用,在支持CPUID指令的CPU中,这一位将为1。
2、CP...
How to download Xcode DMG or XIP file?
...ion (6.3, 5.1, etc.) only the latest revision is kept in the list.)
Xcode 12
12.2 beta
12 (Requires macOS 10.15.4 or later) (Latest as of 17-Sept-2020)
Xcode 11
11.7 (Latest as of Sept 02 2020)
11.6
11.5
11.4.1 (Requires macOS 10.15.2 or later)
11.3.1
11.2.1
11.1
11 (Requires macOS 10.1...
汇编语言(王爽著)附书签 - 文档下载 - 清泛网 - 专注C/C++及内核技术
...深入浅出(书是给人看的,别人看懂了才是最关键的)。2、有的地方看的出来是老师自己的感悟(不像其它国内大多数的书,就知道东抄一点西搬一点。内容到是什么都有,看了就不知道在讲个什么,什么都讲不清楚,就知道...
App Inventor 2 中文网支持OpenAI的ChatGPT对话及AI绘图(AI伴侣2.67及以上...
App Inventor 2 中文网已经升级ChatBot及ImageBot组件。
App Inventor 2 参考文档 · App Inventor 2 中文网
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App Inventor 2 参考文档
App Inventor 2 参考文档分为以下几大类:内置块参考文档、组件参考文档、拓展参考文档、概念参考文档、其他技术文档及App Inve...