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How to autosize a textarea using Prototype?
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Facebook does it, when you write on people's walls, but only resizes vertically.
Horizontal resize strikes me as being a mess, due to word-wrap, long lines, and so on, but vertical resize seems to be pretty safe and nice.
None of th...
What are forward declarations in C++?
... or functions) before it is used.
This really just allows the compiler to do a better job of validating the code, and allows it to tidy up loose ends so it can produce a neat looking object file. If you didn't have to forward declare things, the compiler would produce an object file that would have...
How to reload the current state?
...rrent, $stateParams, {
reload: true, inherit: false, notify: true
});
Documentation: https://angular-ui.github.io/ui-router/site/#/api/ui.router.state.$state#methods_reload
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Lock, mutex, semaphore… what's the difference?
...ock but it can be system wide (shared by multiple processes).
A semaphore does the same as a mutex but allows x number of threads to enter, this can be used for example to limit the number of cpu, io or ram intensive tasks running at the same time.
For a more detailed post about the differences be...
Shell script - remove first and last quote (") from a variable
...pt. It removes the quotes from the string that is held by a variable. I am doing it using sed, but is it efficient? If not, then what is the efficient way?
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How does std::forward work? [duplicate]
I know what it does and when to use it but I still can't wrap my head around how it works. Please be as detailed as possible and explain when std::forward would be incorrect if it was allowed to use template argument deduction.
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Fast way of finding lines in one file that are not in another?
...case) are output. You may also use a few diff options that other solutions don't offer, such as -i to ignore case, or various whitespace options (-E, -b, -v etc) for less strict matching.
Explanation
The options --new-line-format, --old-line-format and --unchanged-line-format let you control the...
Can a java file have more than one class?
...etc) together with the main public class. Note that it is always OK not to do this--the only effect is on the readability (or not) of your code.
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LF will be replaced by CRLF in git - What is that and is it important? [duplicate]
... new rails application I'm seeing a warning in git about LF replacement. I do
git init
git add .
2 Answers
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Double exclamation points? [duplicate]
... undefined // true
" \t\r\n" == 0 // true
Source: Doug Crockford
Javascript also gets really weird when it comes to NaN values. And this is the only case I can think of off the top of my head where !! would behave differently to ===.
NaN === NaN //false
!!NaN === ...