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Can a local variable's memory be accessed outside its scope?
... back your key. You steal the key!
A week later, you return to the hotel, do not check in, sneak into your old room with your stolen key, and look in the drawer. Your book is still there. Astonishing!
How can that be? Aren't the contents of a hotel room drawer inaccessible if you haven't rented th...
Why do we need a pure virtual destructor in C++?
I understand the need for a virtual destructor. But why do we need a pure virtual destructor? In one of the C++ articles, the author has mentioned that we use pure virtual destructor when we want to make a class abstract.
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How do I get the find command to print out the file size with the file name?
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Your answer does not exclude directories, so you will end up running ls on directories as well, which clearly is not the right thing to do.
– Faheem Mitha
Nov 7 '14 at 10:08
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How do I inject a controller into another controller in AngularJS
I'm new to Angular and trying to figure out how to do things...
7 Answers
7
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How do I check if an array includes a value in JavaScript?
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Modern browsers have Array#includes, which does exactly that and is widely supported by everyone except IE:
console.log(['joe', 'jane', 'mary'].includes('jane')); //true
You can also use Array#indexOf, which is less direct, but doesn't require polyfills for ...
How can one change the timestamp of an old commit in Git?
...ge the dates of commit 119f9ecf58069b265ab22f1f97d2b648faf932e0, you could do so with something like this:
git filter-branch --env-filter \
'if [ $GIT_COMMIT = 119f9ecf58069b265ab22f1f97d2b648faf932e0 ]
then
export GIT_AUTHOR_DATE="Fri Jan 2 21:38:53 2009 -0800"
export GI...
How to enable PHP's openssl extension to install Composer?
...m getting a warning message for not enabling openssl which I had already done in WAMP.
18 Answers
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How do I change the root directory of an apache server? [closed]
Does anyone know how to change the document root of the Apache server? I basically want localhost to come from /users/spencer/projects directory instead of /var/www .
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When do you use varargs in Java?
I'm afraid of varargs. I don't know what to use them for.
8 Answers
8
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Fully custom validation error message with Rails
...ying to get an error message like "The song field can't be empty" on save. Doing the following:
17 Answers
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