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Check a collection size with JSTL
...ts:
${empty companies}
This checks for null and empty lists/collections/arrays. It doesn't get you the length but it satisfies the example in the OP. If you can get away with it this is just cleaner than importing a tag library and its crusty syntax like gt.
...
Exception thrown in NSOrderedSet generated accessors
... I am getting this error when I try to implement this work-around.. [__NSArrayI isEqualToSet:]: unrecognized selector sent to instance... This usually is from a item that has been release, but can't find where, anyone run into this?
– DerekH
Jan 19 '12 at 15:...
In C++, if throw is an expression, what is its type?
...erand has type (possibly cv-qualified) void, then the lvalue-to-rvalue,
array-to-pointer, and function-to-pointer standard conversions are performed on the second and
third operands, and one of the following shall hold:
— The second or the third operand (but not both) is a throw-expressi...
How to generate a random int in C?
...s not safe to use */
return 1;
}
/* myString will be an array of 32 random bytes, not null-terminated */
randombytes_buf(myString, 32);
/* myInt will be a random number between 0 and 9 */
myInt = randombytes_uniform(10);
}
randombytes_uniform() is cryptograp...
How do you format the day of the month to say “11th”, “21st” or “23rd” (ordinal indicator)?
...cell 0 is wasted)
String[] ordinalIndicators = new String[31 + 1];
Arrays.fill(ordinalIndicators, 1, ordinalIndicators.length, "th");
ordinalIndicators[1] = ordinalIndicators[21] = ordinalIndicators[31] = "st";
ordinalIndicators[2] = ordinalIndicators[22] = "nd";
ordinalIndicator...
Extracting substrings in Go
...
To get substring
find position of "sp"
cut string with array-logical
https://play.golang.org/p/0Redd_qiZM
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Are there any smart cases of runtime code modification?
...elf modifying code was the only way to implement subroutines, pointers and arrays.
More cases of code modification:
Many debuggers replace instructions to implement breakpoints.
Some dynamic linkers modify code at runtime. This article provides some background on the runtime relocation of Window...
Java8 Lambdas vs Anonymous classes
...
@nosid Ah, the single-element array hack. Just don't try to use your counter from multiple threads. If you're going to allocate something on the heap and capture it in a lambda, you might as well use an AIC and add a field that you can mutate directly. Us...
Nesting await in Parallel.ForEach
...egreeOfConcurrency)
{
await Task.WhenAny(activeTasks.ToArray());
//observe exceptions here
activeTasks.RemoveAll(t => t.IsCompleted);
}
}
await Task.WhenAll(activeTasks.ToArray()).ContinueWith(t =>
{
//observe exceptions...
How do I forward parameters to other command in bash script?
...
$@ essentially treats each element of the array as a quoted string - they are passed along without opportunity for expansion. It also ensures that each is seen as a separate word. This explanation along with a test script demonstrating the difference is here: tldp.or...