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How to write to file in Ruby?
I need to read the data out of database and then save it in a text file.
7 Answers
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How to create GUID / UUID?
... are identifiers designed to provide certain uniqueness guarantees.
While it is possible to implement an RFC-compliant UUIDs in a few lines of JS (E.g. see @broofa's answer, below) there are several common pitfalls:
Invalid id format (UUIDs must be of the form "xxxxxxxx-xxxx-Mxxx-Nxxx-xxxxxxxxxxx...
Open a URL in a new tab (and not a new window)
... an author can do can choose to open in a new tab instead of a new window; it is a user preference. (Note that the default user preference in most browsers is for new tabs, so a trivial test on a browser where that preference hasn't been changed will not demonstrate this.)
CSS3 proposed target-new,...
What is Func, how and when is it used
What is Func<> and what is it used for?
7 Answers
7
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Conveniently Declaring Compile-Time Strings in C++
...rings during compile-time in C++ has several useful applications. Although it is possible to create compile-time strings in C++, the process is very cumbersome, as the string needs to be declared as a variadic sequence of characters, e.g.
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CSS @font-face not working with Firefox, but working with Chrome and IE
...gle Chrome beta as well as IE 7. However, Firefox seems to have a problem with this. I'm suspecting it to be a problem of how my CSS files are included, cause I know Firefox is not too friendly about cross-domain imports.
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How can I get the max (or min) value in a vector?
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Using c++11/c++0x compile flags, you can
auto it = max_element(std::begin(cloud), std::end(cloud)); // c++11
Otherwise, write your own:
template <typename T, size_t N> const T* mybegin(const T (&a)[N]) { return a; }
template <typename T, size_t N> ...
Emacs mode for Stack Overflow's markdown
...er, an extension for Org-mode to handle Stack Overflow formatting? Ideally it should include all formatting options supported by the markdown syntax used in the Stack Overflow question/comment buffers.
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How to handle :java.util.concurrent.TimeoutException: android.os.BinderProxy.finalize() timed out af
... 90+% of them happen on Android 4.3. We're getting reports of this from Crittercism from users out in the field.
11 Answer...
Why git can't remember my passphrase under Windows
I have just start using git and i can't get it to remember my passphrase I'm using cmd.exe elevated and my git host is github and i have create a ssh key like that guide on github
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