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How does grep run so fast?
I am really amazed by the functionality of GREP in shell, earlier I used to use substring method in java but now I use GREP for it and it executes in a matter of seconds, it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though)
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When using the Java debugger in Intellij what does “Drop Frame” mean?
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The call stack of your application can be viewed in the debugger. Using the "Drop Frame" functionality you can "fall back" to a previous stack frame, in a sense going back in time. This can be helpful to re-enter a function if you...
In Vim, how do I delete everything within the double quotes?
...een the quotes flowed over two lines. I had to resize the window so it was all on one line. Then it worked fine.
– nulluser
Dec 6 '13 at 19:56
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SSH to Vagrant box in Windows?
... just use the proper solution, not workaround: there is my answer below. Small patch in Vagrant.
– Michael Field
Dec 4 '12 at 18:07
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Running multiple AsyncTasks at the same time — not possible?
...ool pattern for running the stuff from doInBackground(). The issue is initially (in early Android OS versions) the pool size was just 1, meaning no parallel computations for a bunch of AsyncTasks. But later they fixed that and now the size is 5, so at most 5 AsyncTasks can run simultaneously. Unfort...
Ruby: extend self
...ea of extend . However, what's happening in this segment of code? Specifically, what does extend do? Is it just a convenient way of making the instance methods into class methods? Why would you do it this way rather than specifying class methods from the beginning?
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Flushing footer to bottom of the page, twitter bootstrap
I am generally familiar with the technique of flushing a footer using css.
34 Answers
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Enabling ProGuard in Eclipse for Android
...confusing because the project.properties also says # This file is automatically generated by Android Tools. # Do not modify this file -- YOUR CHANGES WILL BE ERASED!
– Todd Painton
Sep 10 '12 at 18:57
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Checking if a key exists in a JavaScript object?
... testing whether a key exists. What if the key exists but the value is actually undefined?
var obj = { key: undefined };
obj["key"] !== undefined // false, but the key exists!
You should instead use the in operator:
"key" in obj // true, regardless of the actual value
If you want to check if a...
Is there a difference between foo(void) and foo() in C++ or C?
...tion across both languages and make our headers multilingual (though we usually need to do some more things to the headers to make them truly cross-language; namely, wrap them in an extern "C" if we're compiling C++).
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