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Undo changes in entity framework entities

...ys the same time 50ms+0*n= 50ms. O(n) means the performance is influenced by the number of objects... performance is maybe 2ms+0.5ms*n... so bellow 96 objects it would be faster but time would increase linearly with the amount of data. – Guish Jul 3 '14 at 14:...
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How do I copy a hash in Ruby?

I'll admit that I'm a bit of a ruby newbie (writing rake scripts, now). In most languages, copy constructors are easy to find. Half an hour of searching didn't find it in ruby. I want to create a copy of the hash so that I can modify it without affecting the original instance. ...
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How to replace a hash key with another key

... I often don't like "smart" ruby code because it takes some time to tell what it is really doing. Your solution is in other hand simple and descriptive. – Lucas Nov 13 '14 at 18:55 ...
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Find and replace strings in vim on multiple lines

... and replace with “bar”. First hit [Esc] key Type : (colon) followed by %s/foo/bar/ and hit [Enter] key :%s/foo/bar/ share | improve this answer | follow ...
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代码块超过1.2w编译apk报错问题 - App Inventor 2 中文网 - 清泛IT社区,为创新赋能!

...b4ca4bc2cd66c555d4358bf672a1f10a:5)      [java] Caused by: com.android.tools.r8.CompilationFailedException: Compilation failed to complete, position: Lappinventor/ai_admin/AAC_3/Screen1;run(Lgnu/mapping/CallContext;)V, origin: /tmp/1741441639142_3119821055054021632-0/youngandroid...
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Best Practices: working with long, multiline strings in PHP?

...which is more suitable for templates, because nested code indent is broken by such syntax. share | improve this answer | follow | ...
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How to restore the permissions of files and directories within git if they have been modified?

...ith the last git command you ran. Thx to @Mixologic for pointing out that by simply using -R on git diff, the cumbersome sed command is no longer required. share | improve this answer | ...
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Moq: How to get to a parameter passed to a method of a mocked service

... You can also achieve the same by just declaring the types of the arguments in the lambda expression, like so: .Callback((string s1, SomeResponse s2) => /* stuff */ ) – jb637 May 3 '19 at 12:39 ...
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Sublime Text from Command Line

... Btw, you elevate your Windows (7) privs by pressing Ctrl-Shift-enter after typing cmd into the Start|Run text box... – likethesky Aug 30 '14 at 0:41 ...
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How to do scanf for single char in C [duplicate]

...0; } The call to fgets() doesn't wait for input because the newline left by the previous scanf() call is read and fgets() terminates input reading when it encounters a newline. There are many other similar problems associated with scanf(). That's why it's generally recommended to avoid it. So, w...