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Powershell equivalent of bash ampersand (&) for forking/running background processes
...ckground:
Start-Job does not have access to your existing scope (because it runs in a separate session). You cannot do "Start-Job {notepad $myfile}"
Start-Job does not preserve the current directory (because it runs in a separate session). You cannot do "Start-Job {notepad myfile.txt}" where myfil...
How do I return multiple values from a function? [closed]
The canonical way to return multiple values in languages that support it is often tupling .
14 Answers
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How can I parse a string with a comma thousand separator to a number?
I have 2,299.00 as a string and I am trying to parse it to a number. I tried using parseFloat , which results in 2. I guess the comma is the problem, but how would I solve this issue the right way? Just remove the comma?
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object==null or null==object?
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This is probably a habit learned from C, to avoid this sort of typo (single = instead of a double ==):
if (object = null) {
The convention of putting the constant on the left side of == isn't really useful in Java since Java requires that the e...
How can I generate a self-signed certificate with SubjectAltName using OpenSSL? [closed]
I am trying to generate a self-signed certificate with OpenSSL with SubjectAltName in it.While I am generating the csr for the certificate, my guess is I have to use v3 extensions of OpenSSL x509.
I am using :
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IllegalArgumentException or NullPointerException for a null parameter? [closed]
...appropriate for this particular property. I have always been torn in this situation: should I throw an IllegalArgumentException , or a NullPointerException ? From the javadocs, both seem appropriate. Is there some kind of an understood standard? Or is this just one of those things that you should...
What is the native keyword in Java for?
While playing this puzzle (It's a Java keyword trivia game), I came across the native keyword.
10 Answers
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.NET unique object identifier
...us value A will be changed to value B, so as far as safe code is concerned it's still a unique ID.
If the objects involved are under your control, you could create a mapping using weak references (to avoid preventing garbage collection) from a reference to an ID of your choosing (GUID, integer, wha...
How to create P12 certificate for iOS distribution
...ed them. I was following instructions here on Stack Overflow to convert it to PEM and then to P12 files, but I'm stuck. When I then attempt to convert the PEM to P12, it wants a private key of some sort, and I don't know where to get it.
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How to match “anything up until this sequence of characters” in a regular expression?
...e most popular ones that can be considered "complete".
/.+?(?=abc)/
How it works
The .+? part is the un-greedy version of .+ (one or more of
anything). When we use .+, the engine will basically match everything.
Then, if there is something else in the regex it will go back in steps
tr...