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Counting the number of elements with the values of x in a vector
...bset it:
> a[names(a)==435]
435
3
Or convert it into a data.frame if you're more comfortable working with that:
> as.data.frame(table(numbers))
numbers Freq
1 4 2
2 5 1
3 23 2
4 34 2
...
...
Is it possible to make the -init method private in Objective-C?
...at any time.
What you can do is throw an NSInternalInconsistencyException if your -init method is invoked:
- (id)init {
[self release];
@throw [NSException exceptionWithName:NSInternalInconsistencyException
reason:@"-init is not a valid initializer for th...
How to get first and last day of previous month (with timestamp) in SQL Server
...rst and last day of previous month with timestamp. Hope this helps others. If there is already a solution for this problem I apologize.
...
Disabling implicit animations in -[CALayer setNeedsDisplayInRect:]
...'re looking for in order to prevent the crossfade on updated drawing.
Swift version:
let newActions = [
"onOrderIn": NSNull(),
"onOrderOut": NSNull(),
"sublayers": NSNull(),
"contents": NSNull(),
"bounds": NSNull(),
]
...
iOS 7 sizeWithAttributes: replacement for sizeWithFont:constrainedToSize
...ll you can try this :
NSDictionary *attributes = @{NSFontAttributeName: [UIFont fontWithName:@"HelveticaNeue" size:14]};
// NSString class method: boundingRectWithSize:options:attributes:context is
// available only on ios7.0 sdk.
CGRect rect = [textToMeasure boundingRectWithSize:CGSizeMake(width, ...
Where is the “Fold” LINQ Extension Method?
...next) => prod * next);
See MSDN for more information. It lets you specify a seed and then an expression to calculate successive values.
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cancelling queued performSelector:afterDelay calls
does anybody know if it is possible to cancel already queued selector events from the event stack or timer stack (or whatever mechanism it is that is utilized by the API) when you call performSelector:withObject:afterDelay ?
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“Prevent saving changes that require the table to be re-created” negative effects
...lar Are there any negative effects / possible drawbacks of doing this? and If so, is the table copy a 100% exact replica of the source table?. Do you have any information regarding those questions?
– tfrascaroli
Jun 14 '17 at 9:33
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How can I wait In Node.js (JavaScript)? l need to pause for a period of time
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This is async, it means that if function1 terminates before 3 seconds, they start overlapping each other. Then you can't even return and it's almost never utilizable. The only way I found so far was using debugger;
– Cristian Traì...
Increase heap size in Java
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You can increase to 4GB on a 32 bit system. If you're on a 64 bit system you can go higher. No need to worry if you've chosen incorrectly, if you ask for 5g on a 32 bit system java will complain about an invalid value and quit.
As others have posted, use the cmd-line ...