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How do you delete all text above a certain line
How do you delete all text above a certain line. For deletion below a line I use "d shift g"
5 Answers
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If string is empty then return some default value
Often I need to check if some value is blank and write that "No data present" like that:
6 Answers
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Mongoose's find method with $or condition does not work properly
Recently I start using MongoDB with Mongoose on Nodejs.
4 Answers
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Nodejs send file in response
Expressjs framework has a sendfile() method. How can I do that without using a whole framework. I am using node-native-zip to create an archive and I want to send that to the user.
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Is it possible in SASS to inherit from a class in another file?
The question pretty much says it all.
4 Answers
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How do you list all triggers in a MySQL database?
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The command for listing all triggers is:
show triggers;
or you can access the INFORMATION_SCHEMA table directly by:
select trigger_schema, trigger_name, action_statement
from information_schema.triggers
You can do this from version 5.0.10 onwards.
More information about the TRIGGER...
Instantiating object of type parameter
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After type erasure, all that is known about T is that it is some subclass of Object. You need to specify some factory to create instances of T.
One approach could use a Supplier<T>:
class MyClass<T> {
private final Supplier...
Return two and more values from a method
Is there any possibility to return multiple values from method? Something like this:
4 Answers
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How to use SQL Order By statement to sort results case insensitive?
... Alphabetical order. The problem is, SQLite doesn't seem to consider A=a during sorting, thus I get results like this:
3 A...
Weird “[]” after Java method signature
I looked at some Java code today, and I found some weird syntax:
4 Answers
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