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How to check file MIME type with javascript before upload?
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Jackson JSON custom serialization for certain fields
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108
You can implement a custom serializer as follows:
public class Person {
public String na...
GROUP_CONCAT ORDER BY
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317
You can use ORDER BY inside the GROUP_CONCAT function in this way:
SELECT li.client_id, group...
What does Bump Version stand for?
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271
It means to increment the version number to a new, unique value.
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C++0x lambda capture by value always const?
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167
Use mutable.
auto bar = [=] () mutable -> bool ....
Without mutable you are declaring t...
How to use a variable for the key part of a map
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169
Use this:
def map = [(A):1, (X):2]
For the value-part it's even easier, since there is no a...
Can I checkout github wikis like a git repository?
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You can now!
git clone https://github.com/user/project.wiki.git
or if you use ssh
git clon...
PostgreSQL - Rename database
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191
Try not quoting the database name:
ALTER DATABASE people RENAME TO customers;
Also ensure t...
How to replace text between quotes in vi
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183
Use ci", which means: change what inside the double quotes.
You can also manipulate other t...