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How do I negate a condition in PowerShell?
... it with Not. It should be:
if (-Not (Test-Path C:\Code)) {
write "it doesn't exist!"
}
You can also use !: if (!(Test-Path C:\Code)){}
Just for fun, you could also use bitwise exclusive or, though it's not the most readable/understandable method.
if ((test-path C:\code) -bxor 1) {write "i...
What is the purpose of the vshost.exe file?
... The VS host process is only used to improve debuging - but it does not enable debuging.
– Daniel Brückner
Apr 21 '09 at 19:42
add a comment
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Scala equivalent of Java java.lang.Class Object
...ket is "now", ie Nov. 2011, two years later, fixed.
In 2.9.1, getClass now does:
scala> "foo".getClass
res0: java.lang.Class[_ <: java.lang.String] = class java.lang.String
)
Back in 2009:
It would be useful if Scala were to treat the return from getClass() as a java.lang.Class[T] fo...
The difference between Classes, Objects, and Instances
...please someone tell me what is the differences between object and instance?Does this mean that object don't really exist in context of programming and instance represents object in it?
– Pranjut
Aug 1 '09 at 6:13
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PostgreSQL: Modify OWNER on all tables simultaneously in PostgreSQL
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REASSIGN OWNED BY doesn't work for objects owned by postgres.
– BrunoJCM
Apr 1 '13 at 17:31
20
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Regular expression to return text between parenthesis
... might be a stupid question, but why is the "?" needed ? Why does "(.*)" not work?
– CutePoison
May 29 '19 at 10:07
3
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Check if a string is a date value
...he true argument is there so the Moment won't try to parse the input if it doesn't exactly conform to one of the formats provided (it should be a default behavior in my opinion).
You can use an internally provided format:
moment("2015-06-22T13:17:21+0000", moment.ISO_8601, true).isValid(); // true...
What uses are there for “placement new”?
...ether in a single memory arena, select an allocator which is very fast but does no deallocation, use memory mapping, and any other semantic you wish to impose by choosing the pool and passing it as an argument to an object's placement new operator.
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.NET Process.Start default directory?
...console application. It works fine for the case where the Java application doesn't care what the "default" directory is, but fails for a Java application that only searches the current directory for support files.
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Are there any naming convention guidelines for REST APIs? [closed]
...
While the Google Maps API does uses underscores, the Google Style Guide requires Camel Case. The Google+ API and Custom Search API, among others, use Camel Case.
– Benjamin
Jun 6 '14 at 16:23
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