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Rails how to run rake task
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132
You can run Rake tasks from your shell by running:
rake task_name
To run from from Ruby (e....
How do I comment on the Windows command line?
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216
The command you're looking for is rem, short for "remark".
There is also a shorthand version ::...
When should I use @classmethod and when def method(self)?
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In [6]: class Foo(object): some_static = staticmethod(lambda x: x+1)
In [7]: Foo.some_static(1)
Out[7]: 2
In [8]: Foo().some_static(1)
Out[8]: 2
In [9]: class Bar(Foo): some_static = staticmethod(lambda x: x*2)
In [10]: Bar.some_static(1)
Out[10]: 2
In [11]: Bar().some_static(1)
Out[11...
How do I get the application exit code from a Windows command line?
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1005
A pseudo environment variable named errorlevel stores the exit code:
echo Exit Code is %erro...
Reasons that the passed Intent would be NULL in onStartCommand
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Mapping enum to string in hibernate
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182
Yes, is possible. It should be:
@Enumerated(EnumType.STRING)
@Column(name = "category_type")
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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...
How to go up a level in the src path of a URL in HTML?
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187
Use .. to indicate the parent directory:
background-image: url('../images/bg.png');
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How can I know when an EditText loses focus?
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edited Mar 30 '16 at 6:14
Mann
50033 silver badges1313 bronze badges
answered May 16 '12 at 2...
Check if key exists and iterate the JSON array using Python
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167
import json
jsonData = """{"from": {"id": "8", "name": "Mary Pinter"}, "message": "How ARE yo...