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How to use Git Revert
...tion(+), 1 deletion(-)
In this example the commit history has two commits and the last one is a mistake. Using git revert:
$ git revert HEAD
[master 1db4eeb] Revert "bad update"
1 file changed, 1 insertion(+), 1 deletion(-)
There will be 3 commits in the log:
$ git log --oneline
1db4eeb Revert "b...
Is volatile expensive?
...LoadLoad or a LoadStore barrier. Further down the page I see that LoadLoad and LoadStore are effectively no-ops on X86 CPUs. Does this mean that volatile read operations can be done without a explicit cache invalidation on x86, and is as fast as a normal variable read (disregarding the reordering co...
Count rows with not empty value
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I just used =COUNTIF(Range, "<>") and it counted non-empty cells for me.
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Why does i = i + i give me 0?
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Could you expand on your answer a bit?
– DeaIss
Jun 11 '14 at 22:16
17
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Objective-C: Calling selectors with multiple arguments
...ant to rename the method:
- (void)myTestWithAString:(NSString*)aString;
And call:
[self performSelector:@selector(myTestWithAString:) withObject:myString];
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Understanding implicit in Scala
I was making my way through the Scala playframework tutorial and I came across this snippet of code which had me puzzled:
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Practicing BDD with python [closed]
Which are the most advanced frameworks and tools there are available for python for practicing Behavior Driven Development? Especially finding similar tools as rspec and mocha for ruby would be great.
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Is there a /dev/null on Windows?
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I think you want NUL, at least within a command prompt or batch files.
For example:
type c:\autoexec.bat > NUL
doesn't create a file.
(I believe the same is true if you try to create a file programmatically, but I haven't tried it.)
In PowerShell, you want $nu...
Can I use git diff on untracked files?
...diff output, or is my best bet to use git add on the newly created files and the existing files I have edited, then use:
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I just discovered why all ASP.Net websites are slow, and I am trying to work out what to do about it
...ASP.Net web application gets a Session lock at the beginning of a request, and then releases it at the end of the request!
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