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How to retrieve a single file from a specific revision in Git?
...e syntax is indeed
git show object
git show $REV:$FILE
git show somebranch:from/the/root/myfile.txt
git show HEAD^^^:test/test.py
The command takes the usual style of revision, meaning you can use any of the following:
branch name (as suggested by ash)
HEAD + x number of ^ characters
The SHA1 hash...
Clear the entire history stack and start a new activity on Android
... activity A and B:
Here Activity flow is A->B .On clicking backbutton from B we need to close the application then while starting Activity B from A just call finish() this will prevent android from storing Activity A in to the Backstack.eg for activity A is Loding/Splash screen of application.
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Getting a random value from a JavaScript array
...ed in your project you can use _.sample.
// will return one item randomly from the array
_.sample(['January', 'February', 'March']);
If you need to get more than one item randomly, you can pass that as a second argument in underscore:
// will return two items randomly from the array using unders...
How to read a line from the console in C?
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Note that this getline() is different from the POSIX standard getline() function.
– Jonathan Leffler
Apr 12 '17 at 5:42
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Log all requests from the python-requests module
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@TD_Nijboer: see How do I disable log messages from the Requests library?
– Martijn Pieters♦
Aug 11 '16 at 13:46
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Convert .pem to .crt and .key
...and to extract/convert the certificate .crt and private key .key files from a .pem file? I just read they are interchangable, but not how.
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How to do Base64 encoding in node.js?
...doing base64 encoding of the result. For example:
> console.log(Buffer.from("Hello World").toString('base64'));
SGVsbG8gV29ybGQ=
> console.log(Buffer.from("SGVsbG8gV29ybGQ=", 'base64').toString('ascii'))
Hello World
Buffers are a global object, so no require is needed. Buffers created with ...
VIM + JSLint?
...
You can follow the intructions from JSLint web-service + VIM integration or do what I did:
Download http://jslint.webvm.net/mylintrun.js and http://www.jslint.com/fulljslint.js
and put them in a directory of your choice.
Then add the following line to t...
Why does C++ rand() seem to generate only numbers of the same order of magnitude?
...an important one. Might be a good place to point out various distributions from the C++11 standard library.
– leftaroundabout
Jun 20 '13 at 21:43
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What are the use-cases for Web Workers? [closed]
... wouldn’t want to block your code editing whilst you’re using the app.
From Mozilla: One way workers are useful is to allow your code to perform processor-intensive calculations without blocking the user interface thread.
As a practical example, think of an app which has a large table of #s (t...