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How to remove all subviews of a view in Swift?
... The warning, result of call to 'map' is unused , is not an error. Array.map in most languages will return the modified array. The equivalent method which doesn't return an array, would be view.subviews.forEach.
– user916367
Sep 3 '15 at 13:45
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AngularJS: Understanding design pattern
...a Application business rules, which is application specific. For instance, error checks and handling.
It is important to stress that both of these within a client context are not 'real' business logic - they only deal with the portion of it that is important for the client. Application logic (not d...
Is System.nanoTime() completely useless?
... int status = gettimeofday(&time, NULL);
assert(status != -1, "linux error");
return jlong(time.tv_sec) * 1000 + jlong(time.tv_usec / 1000);
}
jlong os::javaTimeNanos() {
if (Linux::supports_monotonic_clock()) {
struct timespec tp;
int status = Linux::clock_gettime(CLOCK_MONOTO...
AES Encryption for an NSString on the iPhone
... aside from the extra comma in each call to CCCrypt() which caused compile errors.
A later comment on that post includes this adapted code, which works for me, and seems a bit more straightforward. If you include their code for the NSData category, you can write something like this: (Note: The prin...
PHP PDO returning single row
...ence. If something goes wrong with query, depending on how you've got your error handling set up, it will either throw an Exception (desired, in my opinion) or you'll get an Invalid object method reference "fetch" on "false".... error, a form of which you would have gotten anyway because the query o...
Pairs from single list
...
IndexError: pop from empty list
– HQuser
May 18 '19 at 11:48
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Using Vim's tabs like buffers
...
To me, this is a bug, not "user error". Searching around the web for 'vim tabs' indicates that that just about everyone else disagrees with you, or is unaware of the "real" way to use Vim tabs. Also, if tabs are really "layout" views, then why are default...
How can I check if a checkbox is checked?
...You should also advice to strip that == 1. Its only working because of two errors. Actually the value is true or false, he should just using if( remeber.checked )
– jAndy
Mar 27 '12 at 10:08
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Add a column to a table, if it does not already exist
...ry for MS SQL Server that adds a column into a table. But I don't want any error display, when I run/execute the following query.
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“Undefined reference to” template class constructor [duplicate]
...n the entire compilation process, or we will get the 'undefined reference' error. (This applies to the other methods of cola<T> also.)
Understanding the problem
The problem is caused by the fact that main.cpp and cola.cpp will be compiled separately first. In main.cpp, the compiler will impl...