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Move an array element from one array position to another
...splice(new_index, 0, arr.splice(old_index, 1)[0]);
return arr; // for testing
};
// returns [2, 1, 3]
console.log(array_move([1, 2, 3], 0, 1));
Note that the last return is simply for testing purposes: splice performs operations on the array in-place, so a return is not necessary. ...
Assign variable value inside if-statement [duplicate]
...roblem is due to the fact that you are defining the variable v inside the test. As explained by @rmalchow, it will work you change it into
int v;
if((v = someMethod()) != 0) return true;
There is also another issue of variable scope. Even if what you tried were to work, what would be the point? ...
How to determine the Boost version on a system?
...
Tested with boost 1.51.0:
std::cout << "Using Boost "
<< BOOST_VERSION / 100000 << "." // major version
<< BOOST_VERSION / 100 % 1000 << "." // minor version
...
How to emulate GPS location in the Android Emulator?
I want to get longitude and latitude in Android emulator for testing.
33 Answers
33
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Hibernate: hbm2ddl.auto=update in production?
...matic updates in production. Write your own patches, review them with DBA, test them, then apply them manually.
Theoretically, if hbm2ddl update worked in development, it should work in production too. But in reality, it's not always the case.
Even if it worked OK, it may be sub-optimal. DBAs are...
RSpec vs Cucumber (RSpec stories) [closed]
...ild.
In our Rails work, Cucumber stories do not substitute for rspec unit tests. The two go hand in hand. In practice, the unit tests tend to drive development of the models and controllers, and the stories tend to drive development of the views (we tend not to write rspec for our views) and provid...
HTML5 form required attribute. Set custom validation message?
...use the field to be considered invalid; therefore you must clear it before testing validity, you can't just set it and forget.
Further edit
As pointed out in @thomasvdb's comment below, you need to clear the custom validity in some event outside of invalid otherwise there may be an extra pass throug...
How to replace all occurrences of a string?
...e to regular expressions for a simple literal string, you could use
str = "Test abc test test abc test...".split("abc").join("");
The general pattern is
str.split(search).join(replacement)
This used to be faster in some cases than using replaceAll and a regular expression, but that doesn't seem to...
How to assign the output of a Bash command to a variable? [duplicate]
...
In shell you assign to a variable without the dollar-sign:
TEST=`pwd`
echo $TEST
that's better (and can be nested) but is not as portable as the backtics:
TEST=$(pwd)
echo $TEST
Always remember: the dollar-sign is only used when reading a variable.
...
How to replace plain URLs with links?
...ine this is a common enough problem that someone has written, debugged and tested a library for it, according to the RFCs. URIs are complex - check out the code for URL parsing in Node.js and the Wikipedia page on URI schemes.
There are a ton of edge cases when it comes to parsing URLs: internation...