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Does PowerShell support constants?
...riable test -option Constant -value 100
or
Set-Variable test -option ReadOnly -value 100
The difference between "Constant" and "ReadOnly" is that a read-only variable can be removed (and then re-created) via
Remove-Variable test -Force
whereas a constant variable can't be removed (even with ...
Parameterize an SQL IN clause
How do I parameterize a query containing an IN clause with a variable number of arguments, like this one?
40 Answers
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Merge two (or more) lists into one, in C# .NET
... .ToList();
Note that there are more efficient ways to do this - the above will basically loop through all the entries, creating a dynamically sized buffer. As you can predict the size to start with, you don't need this dynamic sizing... so you could use:
var allProducts = new L...
Using isKindOfClass with Swift
... the if let ... as? ... syntax is your boy, as Kevin mentioned. But if you don't need the value and only need to check the type, then you should use the is operator.
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Websocket API to replace REST API?
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Not to say that the other answers here don't have merit, they make some good points. But I'm going to go against the general consensus and agree with you that moving to websockets for more than just realtime features is very appealing.
I am seriously considering...
include external .js file in node.js app
...ace an emphasis on what everyone else has been saying var foo in top level does not create a global variable. If you want a global variable then write global.foo. but we all know globals are evil.
If you are someone who uses globals like that in a node.js project I was on I would refactor them away...
node.js execute system command synchronously
...ecSync:
child_process.execSync(command[, options])
You can now directly do this:
const execSync = require('child_process').execSync;
code = execSync('node -v');
and it'll do what you expect. (Defaults to pipe the i/o results to the parent process). Note that you can also spawnSync now.
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Using the “final” modifier whenever applicable in Java [closed]
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I think it all has to do with good coding style. Of course you can write good, robust programs without using a lot of final modifiers anywhere, but when you think about it...
Adding final to all things which should not change simply narrows down...
How to make ThreadPoolExecutor's submit() method block if it is saturated?
...ueue is full, the submit() method blocks when trying to add new tasks. Do I need to implement a custom RejectedExecutionHandler for that or is there an existing way to do this using a standard Java library?
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Row Offset in SQL Server
...ven offset? For example, in another type of SQL database, it's possible to do:
16 Answers
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