大约有 47,000 项符合查询结果（耗时：0.0903秒） [XML]
Why is lazy evaluation useful?
...epending on the sequence of conditional expressions, only a subset may actually be used. In a language like C, all three values would be computed anyway; but in Haskell, only the necessary values are computed.
It also allows for cool stuff like infinite lists. I can't have an infinite list in a lan...
Delete last char of string
...ve(strgroupids.Length - 1);
MSDN:
String.Remove(Int32):
Deletes all the characters from this string beginning at a specified
position and continuing through the last position
share
|
i...
How can I make setInterval also work when a tab is inactive in Chrome?
...o get the elapsed time since the start instead of the end of the previous call. This is usually what you want when animating things. As it is now, if an execution of the interval function takes 15ms, elapsedTime will give 35ms (instead of 50ms which is the interval) next time it is called (when the ...
Trees in Twitter Bootstrap [closed]
... Wow, great solution - and easily extensible!
– rkallensee
Apr 8 '14 at 15:46
Where is the collapse expand function...
Hidden features of Eclipse [closed]
...
Don't forget Ctrl+Shift+L, which displays a list of all the keyboard shortcut combinations (just in case you forget any of those listed here).
share
edi...
What is the best way to uninstall gems from a rails3 project?
I installed all of my gems using bundler via the Gemfile. I thought (mistakenly) that if I deleted a gem from my Gemfile and ran 'bundle install' that the deleted gems would be uninstalled. I've looked at the bundler help file and, so far as I can tell, it does not have a way to uninstall gems.
...
Get array of object's keys
...keys are unordered).
This is an ES5 feature. This means it works in all modern browsers but will not work in legacy browsers.
The ES5-shim has a implementation of Object.keys you can steal
share
|
...
How to convert a normal Git repository to a bare one?
...s inside the .git directory. But I don't know if any of the files are actually changed, so if that fails, you can just do
git clone --bare /path/to/repo
You'll probably need to do it in a different directory to avoid a name conflict, and then you can just move it back to where you want. And yo...
Disable browser 'Save Password' functionality
... joys of working for a government healthcare agency is having to deal with all of the paranoia around dealing with PHI (Protected Health Information). Don't get me wrong, I'm all for doing everything possible to protect people's personal information (health, financial, surfing habits, etc.), but som...
PostgreSQL: Which Datatype should be used for Currency?
...ver make a scale equal to 2 (in postgresql terms, precision is a number of all digits, e.g. in 121.121 it's equal to 6). There are currencies, such as Bahrain Dinar, where 1000 sub-units equal one unit, and there are currencies which don't have sub-units at all.
– Nikolay Arhip...