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Best way to give a variable a default value (simulate Perl ||, ||= )
I love doing this sort of thing in Perl: $foo = $bar || $baz to assign $baz to $foo if $bar is empty or undefined. You also have $foo ||= $bletch which will only assign $bletch to $foo if $foo is not defined or empty.
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Batch files: How to read a file?
How you can read a file (text or binary) from a batch file? There is a way to read it in a binary mode or text mode?
7 Answ...
Why would iterating over a List be faster than indexing through it?
Reading the Java documentation for the ADT List it says:
5 Answers
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How to auto-indent code in the Atom editor?
...you auto-indent your code in the Atom editor? In other editors you can usually select some code and auto-indent it.
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Making the main scrollbar always visible
What CSS is required to make the browser's vertical scrollbar remain visible when a user visits a web page (when the page hasn't enough content to trigger the scrollbar's activation)?
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Why doesn't JavaScript have a last method? [closed]
Its kinda weird that the JavaScript Array class does not offer a last method to retrieve the last element of an array. I know the solution is simple (Ar[Ar.length-1] ), but, still, this is too frequently used.
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android edittext onchange listener
I know a little bit about TextWatcher but that fires on every character you enter. I want a listener that fires whenever the user finishes editing. Is it possible? Also in TextWatcher I get an instance of Editable but I need an instance of EditText . How do I get that?
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What is pip's equivalent of `npm install package --save-dev`?
In nodejs, I can do npm install package --save-dev to save the installed package into the package.
8 Answers
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Get a random item from a JavaScript array [duplicate]
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Why number 9 in kill -9 command in unix? [closed]
I understand it's off topic, I couldn't find anywhere online and I was thinking maybe programming gurus in the community might know this.
I usually use
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