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Why modelVersion of pom.xml is necessary and always set to 4.0.0?
... A POM has to comply with a model. Let's say Maven 4 comes up with model 4.1. If you write your pom to comply with 4.1, it wouldn't be compatible with Maven 3 and model 4.0.0.
It's defined as a mandatory, possibly to enforce a specific XML model in case new models are defined.
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How to show all shared libraries used by executables in Linux?
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leading zeros in rails
...min , both integers in my application. For hr field, if the user enters "1" I would like Rails to automatically pad it to "01" before saving it to the database. Also for the min field if the user enter "0" it should put in as "00".
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How do you create a yes/no boolean field in SQL server?
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Make xargs execute the command once for each line of input
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How do I get an object's unqualified (short) class name?
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184
You can do this with reflection. Specifically, you can use the ReflectionClass::getShortName m...
Is it possible to declare two variables of different types in a for loop?
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C++17: Yes! You should use a structured binding declaration. The syntax has been supported in...
how to mysqldump remote db from local machine
...t at serverfault yet, and the answer is quite simple:
Change:
ssh -f -L3310:remote.server:3306 user@remote.server -N
To:
ssh -f -L3310:localhost:3306 user@remote.server -N
And change:
mysqldump -P 3310 -h localhost -u mysql_user -p database_name table_name
To:
mysqldump -P 3310 -h 127.0....
Logical operators for boolean indexing in Pandas
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219
When you say
(a['x']==1) and (a['y']==10)
You are implicitly asking Python to convert (a['x'...
what does -webkit-transform: translate3d(0,0,0); exactly do? Apply to body?
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-webkit-transform: translate3d(0,0,0); makes some devices run their hardware acceleration.
A ...