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How does Java handle integer underflows and overflows and how would you check for it?
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If it overflows, it goes back to the minimum value and continues from there. If it underflows, it goes back to the maximum value and continues from there.
You can check that beforehand as follows:
public static boolean willAdditionOverflow(int left, int right) {
if (right < 0 &...
C99 stdint.h header and MS Visual Studio
To my amazement I just discovered that the C99 stdint.h is missing from MS Visual Studio 2003 upwards. I'm sure they have their reasons, but does anyone know where I can download a copy? Without this header I have no definitions for useful types such as uint32_t, etc.
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Why does my 'git branch' have no master?
..., foo, then your clone will just have a foo branch.
The remote you cloned from might still have a master branch (you could check with git ls-remote origin master), but you wouldn't have created a local version of that branch by default, because git clone only checks out the remote's HEAD.
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Change a column type from Date to DateTime during ROR migration
I need to change my column type from date to datetime for an app I am making. I don't care about the data as its still being developed.
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How to ignore user's time zone and force Date() use specific time zone
In an JS app, I receive timestamp (eq. 1270544790922 ) from server (Ajax).
7 Answers
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Find unused npm packages in package.json
...de is that it's not fully automatic, i.e. it doesn't extract package names from package.json and check them. You need to do this for each package yourself. Since package.json is just JSON this could be remedied by writing a small script that uses child_process.exec to run this command for each depen...
What is Ruby's double-colon `::`?
... CONSTANT = 4
end
end
end
You could access CONSTANT from outside the module as SomeModule::InnerModule::MyClass::CONSTANT.
It doesn't affect instance methods defined on a class, since you access those with a different syntax (the dot .).
Relevant note: If you want to go back...
addEventListener vs onclick
...t)
Earlier versions of Internet Explorer implement javascript differently from pretty much every other browser. With versions less than 9, you use the attachEvent[doc] method, like this:
element.attachEvent('onclick', function() { /* do stuff here*/ });
In most other browsers (including IE 9 a...
How do I turn a python datetime into a string, with readable format date?
...mplish the same using python's general formatting function...
>>>from datetime import datetime
>>>"{:%B %d, %Y}".format(datetime.now())
The formatting characters used here are the same as those used by strftime. Don't miss the leading : in the format specifier.
Using format() ...
How can I reconcile detached HEAD with master/origin?
...mmit that was most recently processed by the rebase operation.
To recover from your situation, you should create a branch that points to the commit currently pointed to by your detached HEAD:
git branch temp
git checkout temp
(these two commands can be abbreviated as git checkout -b temp)
This ...