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How to append something to an array?
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Some quick benchmarking (each test = 500k appended elements and the results are averages of multiple runs) showed the following:
Firefox 3.6 (Mac):
Small arrays: arr[arr.length] = b is faster (300ms vs. 800ms)
Large arrays: arr.push(b) is faster (500ms...
DialogFragment setCancelable property not working
...le savedInstanceState) {
View view = inflater.inflate(R.layout.dialog_test, container, true);
getDialog().requestWindowFeature(STYLE_NO_TITLE);
getDialog().setCancelable(false);
return view;
}
instead of getDialog().setCancelable(false); you have to use directly setCancelable(fal...
How to check if a folder exists
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You need to transform your Path into a File and test for existence:
for(Path entry: stream){
if(entry.toFile().exists()){
log.info("working on file " + entry.getFileName());
}
}
share
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git rebase without changing commit timestamps
...="%at %s" $GIT_COMMIT); grep -m 1 "$__log" ../../hashlog | cut -d" " -f1); test -n "$__date" && export GIT_COMMITTER_DATE=$__date || cat'
If something goes wrong, just checkout git reflog or all the refs/original/ refs.
Furthormore, you can do the similar thing to the author's timestamp.
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Token Authentication for RESTful API: should the token be periodically changed?
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Interesting solution, which I'll test out later; at the moment your post helped me to get on the right track as I'd simply forgot to set the AUTHENTICATION_CLASSES.
– normic
Jan 20 '17 at 3:02
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What is time_t ultimately a typedef to?
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#include <time.h>
int main(int argc, char** argv)
{
time_t test;
return 0;
}
[root]# gcc -E time.c | grep __time_t
typedef long int __time_t;
It's defined in $INCDIR/bits/types.h through:
# 131 "/usr/include/bits/types.h" 3 4
# 1 "/usr/include/bits/typesizes.h" 1 3 4
# 1...
How do Python's any and all functions work?
...n True when at least one of the elements is Truthy. Read about Truth Value Testing.
all
all will return True only when all the elements are Truthy.
Truth table
+-----------------------------------------+---------+---------+
| | any | all |
+------...
Cleaner way to update nested structures
...collect information. Kiama supports Rewriting, see the examples in RewriterTests, and watch this video. Here's a snippet to whet your appetite:
// Test expression
val e = Mul (Num (1), Add (Sub (Var ("hello"), Num (2)), Var ("harold")))
// Increment every double
val incint = everywheretd (rule { c...
Big O, how do you calculate/approximate it?
... @SamyBencherif: That would be a typical way to check (actually, just testing x & 1 would be sufficient, no need to check == 1; in C, x&1==1 is evaluated as x&(1==1) thanks to operator precedence, so it's actually the same as testing x&1). I think you're misreading the answer th...
What is App.config in C#.NET? How to use it?
...ry1 with a name that matches your exe. For example, if your exe was named "test.exe", there should be a "text.exe.config" in your bin directory. You can change the configuration without a recompile, but you will need to edit the config file that was created at compile time, not the original app.conf...