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Force CloudFront distribution/file update
...y but setting the TTL to 0 and max-age to 0 is really using CloudFront without caching, wouldn't that forward all requests to the origin constantly checking for updates? Essentially making the CDN useless?
– acidjazz
Sep 26 '15 at 23:56
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Why can tuples contain mutable items?
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@garg10may 1) Hashibility isn't easy to detect without calling hash() because everything that inherits from object() is hashable and so subclasses need to explicitly turn-off hashing. 2) Hashibility doesn't guarantee immutability -- it is easy to make examples of hashable ob...
Is there a better way to write this null check, and a non-empty check, in groovy?
...groovier" way is that for example if you are interested in the maximum age out of the members then you can write the following: members?.age.max()
– BTakacs
Aug 19 '14 at 11:54
9
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What is a .h.gch file?
...m in the next build.
Sometimes the *.h.gch will get corrupted or contain outdated information, so deleting that file and compiling it again should fix it.
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What is the native keyword in Java for?
...d main(String[] args) {
System.loadLibrary("Main");
System.out.println(new Main().square(2));
}
}
Main.c
#include <jni.h>
#include "Main.h"
JNIEXPORT jint JNICALL Java_Main_square(
JNIEnv *env, jobject obj, jint i) {
return i * i;
}
Compile and run:
sudo apt-ge...
Can TCP and UDP sockets use the same port?
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@Eric Fortist why exactly should 'everybody know about' the NetBIOS port numbers?
– Marquis of Lorne
Jun 25 '11 at 10:00
4
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Expanding tuples into arguments
...) and passes them as the positional arguments to the function. Read more about unpacking arguments.
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ObjectiveC Parse Integer from String
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I really don't know what was so hard about this question, but I managed to do it this way:
[myStringContainingInt intValue];
It should be noted that you can also do:
myStringContainingInt.intValue;
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How can I verify if one list is a subset of another?
... not. Additionally, sets only work on hashable objects.
Are you asking about subset or subsequence (which means you'll want a string search algorithm)? Will either of the lists be the same for many tests? What are the datatypes contained in the list? And for that matter, does it need to be a list?...
Make first letter of a string upper case (with maximum performance)
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Not sure about this but char + string causes a boxing. Just in case max performance is the requirement.
– nawfal
Sep 13 '17 at 4:39
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