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Batch files - number of command line arguments
...HAVE_0
IF "%2"=="" GOTO HAVE_1
IF "%3"=="" GOTO HAVE_2
etc.
If you have more than 9 arguments then you are screwed with this approach though. There are various hacks for creating counters which you can find here, but be warned these are not for the faint hearted.
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AsyncTask and error handling on Android
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Brilliant! No need to monkey with Handlers anymore
– Bostone
Nov 16 '09 at 5:47
5
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MySQL “incorrect string value” error when save unicode string in Django
...f 255 and some kind of index on it (e.g. unique). Because utf8mb4 uses 33% more space than utf-8 you'll need to make these fields 33% smaller.
In this case, change the max_length from 255 to 191.
Alternatively you can edit your MySQL configuration to remove this restriction but not without some ...
Remove Object from Array using JavaScript
...ray.slice(-x));
Reply to the comment of @chill182: you can remove one or more elements from an array using Array.filter, or Array.splice combined with Array.findIndex (see MDN), e.g.
// non destructive filter > noJohn = John removed, but someArray will not change
let someArray = getArray(...
Difference between EXISTS and IN in SQL?
...e [field] in (1, 2, 3)
When you have a table in an in statement it makes more sense to use a join, but mostly it shouldn't matter. The query optimiser should return the same plan either way. In some implementations (mostly older, such as Microsoft SQL Server 2000) in queries will always get a nest...
Injecting Mockito mocks into a Spring bean
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Does Eclipse have line-wrap
...where I set the Displayed Tab Width to 4 and Print Margin Column to 120 or more.
You can also check the Show Print Margin box to get a faint vertical line at the printer margin column
share
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im...
How do you produce a .d.ts “typings” definition file from an existing JavaScript library?
... is a search engine for NPM-published .d.ts files; this will have slightly more definitions than DefinitelyTyped.
A few modules are also shipping their own definitions as part of their NPM distribution, so also see if that's the case before trying to write your own.
Maybe You Don't Need One
TypeSc...