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Check if all values of array are equal
I need to find arrays where all values are equal. What's the fastest way to do this? Should I loop through it and just compare values?
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Check if at least two out of three booleans are true
... boolean c) {
return a && (b || c) || (b && c);
}
It tests a and b exactly once, and c at most once.
References
JLS 15.25 Conditional Operator ? :
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Intellij idea cannot resolve anything in maven
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I was also getting this error because the project imported main and test folders as modules. Click on Project --> Press F4 --> In Module settings, remove main and test folders and the make the project again. Problem will be resolved.
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Install an apk file from command prompt?
... forward lock.
-r: Reinstall an exisiting app, keeping its data.
-t: Allow test APKs to be installed.
-i <INSTALLER_PACKAGE_NAME>: Specify the installer package name.
-s: Install package on the shared mass storage (such as sdcard).
-f: Install package on the internal system memory.
-d: Allow v...
arrayfun can be significantly slower than an explicit loop in matlab. Why?
Consider the following simple speed test for arrayfun :
2 Answers
2
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How to clone a Date object?
...py and call it SuperDate or something, withing your scope. Lots of hard to test for bugs are caused by object functionality changing unexpectedly.
– Ray Foss
Jan 28 '16 at 13:29
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How to erase the file contents of text file in Python?
...e to overwrite the file. In C++:
#include <fstream>
std::ofstream("test.txt", std::ios::out).close();
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How to access command line arguments of the caller inside a function?
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One can do it like this as well
#!/bin/bash
# script_name function_test.sh
function argument(){
for i in $@;do
echo $i
done;
}
argument $@
Now call your script like
./function_test.sh argument1 argument2
shar...
javascript i++ vs ++i [duplicate]
... Guffa is correct here. jsperf.com/ppi-vs-ipp-forloop when I run this test and it shows i++ being faster in a for loop, but not by enough to be significant. While ++i may be faster in other languages, I think it's safe to say javascript optimizes the operation to be the same.
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Reserved keywords in JavaScript
...vedKeyword(wordToCheck) {
var reservedWord = false;
if (/^[a-z]+$/.test(wordToCheck)) {
try {
eval('var ' + wordToCheck + ' = 1');
} catch (error) {
reservedWord = true;
}
}
return reservedWord;
}
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