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What's quicker and better to determine if an array key exists in PHP?
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Up from the dead... but I also re-ran the benchmark, and made a tweak so the second for loop has to initialize it's own counter and to clear the result array. It shows "isset || null" being faster. codepad.org/Np6oPvgS
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Verifying signed git commits?
...the formatted tag object.
This allows callers to cross-check the tagname from refs/tags with
the tagname from the tag object header upon GPG verification.
Git 2.16 (Q1 2018) will allow the commit signature verification to be even more automated, with the merge.verifySignatures configuration ...
What's the difference between setWebViewClient vs. setWebChromeClient?
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From the source code:
// Instance of WebViewClient that is the client callback.
private volatile WebViewClient mWebViewClient;
// Instance of WebChromeClient for handling all chrome functions.
private volatile WebChromeClien...
How can I tell who forked my repository on GitHub?
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Clicking the number of forks shows you the full network. From there you can click "members" to see who forked the repo. Example for ExpressJS: https://github.com/visionmedia/express/network/members.
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android start activity from service
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From inside the Service class:
Intent dialogIntent = new Intent(this, MyActivity.class);
dialogIntent.addFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(dialogIntent);
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How do I pull files from remote without overwriting local files?
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git pull origin master
git stash pop
Anything that overrides changes from remote will have conflicts which you will have to manually resolve.
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What is tail recursion?
...ll, the running_total is updated.
Note: The original answer used examples from Python. These have been changed to JavaScript, since Python interpreters don't support tail call optimization. However, while tail call optimization is part of the ECMAScript 2015 spec, most JavaScript interpreters don't...
How to load program reading stdin and taking parameters in gdb?
Question cribbed from here .
Unfortunately I don't understand the solution and am not sure what to do beyond compiling with the -g option and running the command M-x gdb.
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Difference in System. exit(0) , System.exit(-1), System.exit(1 ) in Java
... if the execution of the program went good or bad. It's a sort of heredity from older programming languages where it's useful to know if something went wrong and what went wrong.
Exit code is
0 when execution went fine;
1, -1, whatever != 0 when some error occurred, you can use different values f...
Removing multiple classes (jQuery)
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$("element").removeClass("class1 class2");
From removeClass(), the class parameter:
One or more CSS classes to remove from
the elements, these are separated by
spaces.
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