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Test for equality among all elements of a single vector
I'm trying to test whether all elements of a vector are equal to one another. The solutions I have come up with seem somewhat roundabout, both involving checking length() .
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PHP append one array to another (not array_push or +)
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$array1 = array_fill(0,50000,'aa');
$array2 = array_fill(0,100,'bb');
// Test 1 (array_merge)
$start = microtime(true);
$r1 = array_merge($array1, $array2);
echo sprintf("Test 1: %.06f\n", microtime(true) - $start);
// Test2 (avoid copy)
$start = microtime(true);
foreach ($array2 as $v) {
$ar...
Save Screen (program) output to a file
...ersion of Screen using screen -version. You can download and install the latest Screen version from https://www.gnu.org/software/screen/.
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C# 'is' operator performance
... that requires fast performance. Within one of its inner loops, I need to test the type of an object to see whether it inherits from a certain interface.
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log all sql queries
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Oh, and one more thing to in django test runner ignores settings and overrides DEBUG to False, so in test you must @override_settings(DEBUG=True)
– Janusz Skonieczny
Oct 19 '17 at 15:14
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Why we should not use protected static in java
...String[] args) throws java.lang.Exception {
System.out.println(new Test2().getTest());
Test.test = "changed";
System.out.println(new Test2().getTest());
}
}
abstract class Test {
protected static String test = "test";
}
class Test2 extends Test {
public String g...
All Ruby tests raising: undefined method `authenticate' for nil:NilClass
Most of my tests are raising the following and I don't understand why. All methods call raise the 'authenticate' error. I've checked the code if there was a method called "authenticate" but there is no such method.
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pretty-print JSON using JavaScript
...?\d+)?)/g, function (match) {
var cls = 'number';
if (/^"/.test(match)) {
if (/:$/.test(match)) {
cls = 'key';
} else {
cls = 'string';
}
} else if (/true|false/.test(match)) {
cls = 'boolean';
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Context switches much slower in new linux kernels
...to zero, hopefully disabling it as well. I do not have a system that I can test this on, because intel_idle.max_cstate=0 completely knocks out the cpuidle driver on all of the hardware available to me. However, if your installation does revert you from intel_idle to acpi_idle with just the first boo...
CASCADE DELETE just once
...ascade delete without thinking through all of the repercussions.
I'm still testing out this function, so there may be bugs in it -- but please don't try it if your DB has multi column primary (and thus foreign) keys. Also, the keys all have to be able to be represented in string form, but it could b...