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How do I print the type or class of a variable in Swift?
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Include all existing fields and add new fields to document
...peline operator which is nothing other than an alias to $addFieldsadded in 3.4
The $addFields stage is equivalent to a $project stage that explicitly specifies all existing fields in the input documents and adds the new fields.
db.collection.aggregate([
{ "$addFields": { "custom_field": "...
腾讯Tencent开源框架介绍（持续更新） - 开源 & Github - 清泛网 - 专注C/C++及内核技术
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https://github.com/Tencent/libco 非常轻量的C++协程框架，2k~3k行代码量，采用epool+hook实现。libco是微信后台大规模使用的c/c++协程库，2013年至今稳定运行在微信后台的数万台机器上。
使用方式如下：
单线程下的生产者、消费者模...
How do you UrlEncode without using System.Web?
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317
System.Uri.EscapeUriString() can be problematic with certain characters, for me it was a numbe...
How do I iterate over an NSArray?
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Quinn TaylorQuinn Taylor
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How do I remove diacritics (accents) from a string in .NET?
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Ry-♦
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answered Oct 30 '08 at 2:29
Blair ConradBlair Conrad
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How to rsync only a specific list of files?
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3
Edit: Josip Rodin's answer below is better. Please use that one!
You might have an easier time...
How do I shuffle an array in Swift?
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635
This answer details how to shuffle with a fast and uniform algorithm (Fisher-Yates) in Swift 4....
What is the difference between mocking and spying when using Mockito?
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answered Feb 24 '13 at 16:09
JB NizetJB Nizet
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Hidden Features of C#? [closed]
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