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SQL - Select first 10 rows only?
...S
MS SQL Server
SELECT TOP 10 ...
MySQL
SELECT ... LIMIT 10
Sybase
SET ROWCOUNT 10
SELECT ...
Etc.
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Is it OK to use == on enums in Java?
... {
Field field = Unsafe.class.getDeclaredField("theUnsafe");
field.setAccessible(true);
Unsafe unsafe = (Unsafe) field.get(null);
YesNo yesNo = (YesNo) unsafe.allocateInstance(YesNo.class);
Field name = Enum.class.getDeclaredField("name");
name.setAccessible(true);
name....
How can I use the $index inside a ng-repeat to enable a class and show a DIV?
I have a set of <li> elements.
2 Answers
2
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How to find common elements from multiple vectors?
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It is worth noting that intersect is for set operations. If you have elements recurring in the vectors, you will lose this info because the vectors are turned into sets prior to intersect. E.g. intersect(c(1,1,2,3), c(1,1,3,4)) would result in c(1,3), and you might ...
Command to escape a string in bash
... editor after snippets, if snippets enabled
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AsyncProcedures异步过程扩展 · App Inventor 2 中文网
...cedureCompletedWithResult result
do
// 处理返回的结果数据
set ResultLabel.Text to "处理结果: " & result
属性
是否正在运行
指示是否有异步过程正在执行。
超时时间
设置异步过程的超时时间（毫秒），超过此...
Undo a git stash
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Well, not quite. It will not reset what is in the staging directory, so you will have to restage all that (which can be annoying if you had just done a complex git add -p
– Nick
Jan 2 '13 at 17:31
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When to delete branches in Git?
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You can safely remove a branch with git branch -d yourbranch. If it contains unmerged changes (ie, you would lose commits by deleting the branch), git will tell you and won't delete it.
So, deleting a merged branch is cheap and won't ...
PHP - concatenate or directly insert variables in string
...onds (for 200.000 items, that's 1 miliseconf per thousand elements on your set...). That's statistical noise, it's impossible to even measure any difference. Considering it's more readable, time php -r '$string=""; for ($i=0;$i<199999;$i++){ $string = "{$string}{$i}"; } print("Done!\n");' (Inter...
How to print Boolean flag in NSLog?
...WayThree ? 1:0);
The fourth way is
BOOL flagWayFour = FALSE; // You can set YES or NO here.Because TRUE = YES,FALSE = NO and also 1 is equal to YES,TRUE and 0 is equal to FALSE,NO whatever you want set here.
NSLog(@"The flagWayFour result is - %s",flagWayFour ? YES:NO);
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