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Check if one list contains element from the other
...re comparing, you'll get O(n) + O(m), that is, O(n+m), at the cost of some extra RAM; it's a matter of choosing between speed or memory.
– Haroldo_OK
Mar 1 '16 at 13:10
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Read/Write 'Extended' file properties (C#)
...mation from the COM tab of the References dialog.
public static void Main(string[] args)
{
List<string> arrHeaders = new List<string>();
Shell32.Shell shell = new Shell32.Shell();
Shell32.Folder objFolder;
objFolder = shell.NameSpace(@"C:\temp\testprop");
for( int...
Determine whether an array contains a value [duplicate]
...has more upvotes than the answer. But good stuff - I've used indexOf() for strings, but I didn't know you could use it for arrays in general.
– doubleDown
Feb 4 '16 at 12:02
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What does the “===” operator do in Ruby? [duplicate]
...
BTW, === isn't reflexive either : String === String # => false so it doesn't have any of the 3 basic properties required for equalities.
– Eric Duminil
Apr 3 '17 at 14:15
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in_array() and multidimensional array
...es $item. Not to mention the potential to unintentionally match part of a string when there is a double quote in the string itself. I would only trust this function in small/simple situations like this question.
– mickmackusa
Mar 3 '17 at 12:53
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How to get a tab character?
...ive to be more complete. When I tried the "pre" based answers, they added extra vertical line breaks as well.
Each tab can be converted to a sequence non-breaking spaces which require no wrapping.
"&nbsp;&nbsp;&nbsp;&nbsp;"
This is not recommended for repeated/extensive use...
Why no generics in Go?
...s.md.
For example, the PrintSlice function receives a slice of integers or strings and prints it. See https://www.jetbrains.com/help/go/how-to-use-type-parameters-for-generic-programming.html.
package main
import "fmt"
func PrintSlice(type T)(s []T) {
for _, v := range s {
fmt.Print(v...
How to declare a global variable in php?
... and integer-initial values as global scope static variables. Any constant strings are defined as such.
define("myconstant", "value");
class globalVars {
static $a = false;
static $b = 0;
static $c = array('first' => 2, 'second' => 5);
}
function test($num) {
if (!glo...
Look up all descendants of a class in Ruby
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For extra safety one should write ObjectSpace.each_object(::Class) - this will keep the code working when you happen to have a YourModule::Class defined.
– Rene Saarsoo
Oct 3 '11 at 10:42
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Using module 'subprocess' with timeout
...put = check_output(cmd, stderr=STDOUT, timeout=seconds)
output is a byte string that contains command's merged stdout, stderr data.
check_output raises CalledProcessError on non-zero exit status as specified in the question's text unlike proc.communicate() method.
I've removed shell=True becaus...