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how to listen to N channels? (dynamic select statement)
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You can do this using the Select function from the reflect package:
func Select(cases []SelectCase) (chosen int, recv Value, recvOK bool)
Select executes a select operation described by the list of cases. Like
the Go select sta...
How to avoid long nesting of asynchronous functions in Node.js
I want to make a page that displays some data from a DB, so I have created some functions that get that data from my DB. I'm just a newbie in Node.js, so as far as I understand, if I want to use all of them in a single page (HTTP response) I'd have to nest them all:
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Determine installed PowerShell version
How can I determine what version of PowerShell is installed on a computer, and indeed if it is installed at all?
19 Answers...
How do you find the row count for all your tables in Postgres
...ay to find the row count for all my tables in Postgres. I know I can do this one table at a time with:
15 Answers
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The $.param( ) inverse function in JavaScript / jQuery
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answered Jun 9 '11 at 19:23
ccecce
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JavaScript curry: what are the practical applications?
...Mind's comment:
I can't think of an instance where currying—by itself—is useful in JavaScript; it is a technique for converting function calls with multiple arguments into chains of function calls with a single argument for each call, but JavaScript supports multiple arguments in a single funct...
How to tell if node.js is installed or not
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Open a terminal window.
Type:
node -v
This will display your nodejs version.
Navigate to where you saved your script and input:
node script.js
This will run your script.
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Looking for a 'cmake clean' command to clear up CMake output
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There is no cmake clean.
I usually build the project in a single folder like "build". So if I want to make clean, I can just rm -rf build.
The "build" folder in the same directory as the root "CMakeLists.txt" is usually a good ch...
How do I find the authoritative name-server for a domain name?
...ll want the SOA (Start of Authority) record for a given domain name, and this is how you accomplish it using the universally available nslookup command line tool:
command line> nslookup
> set querytype=soa
> stackoverflow.com
Server: 217.30.180.230
Address: 217.30.180.230#53...
.NET HashTable Vs Dictionary - Can the Dictionary be as fast?
...of them guarantee preserving the order of items.
Leaving boxing/unboxing issues aside, most of the time, they should have very similar performance.
The primary structural difference between them is that Dictionary relies on chaining (maintaining a list of items for each hash table bucket) to res...