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Rails migrations: self.up and self.down versus change
Looks like the new rails version has "change" versus self.up and self.down m>me m>thods.
3 Answers
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Check if value already exists within list of dictionaries?
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Here's one way to do it:
if not any(d['main_color'] == 'red' for d in a):
# does not exist
The part in parentheses is a generator expression that returns True for each dictionary that has the key-value pair you are looking for, otherwise False.
If the key co...
How to re-open an issue in github?
...ged it state to closed, but how can I change it to open again ?
I read som>me m>where that I need rights for push and pull operation. Is that true ?
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Mocking a class: Mock() or patch()?
I am using mock with Python and was wondering which of those two approaches is better (read: more pythonic).
2 Answers
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What is `params.require(:person).permit(:nam>me m>, :age)` doing in Rails 4?
All the examples of strong param>me m>ters in Rails 4 docs use
2 Answers
2
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How should I copy Strings in Java?
...le still contains the original value "hello" (this is because of String's immutability right?).
5 Answers
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Properties order in Margin
If I have such string in XAML:
4 Answers
4
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Purpose of asterisk before a CSS property
The following is taken from the Yahoo CSS reset. Can som>me m>one please explain the purpose of the asterisks?
6 Answers
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Spring: Why do we autowire the interface and not the implem>me m>nted class?
Example
2 Answers
2
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Difference between val() and text()
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.val() works on input elem>me m>nts (or any elem>me m>nt with a value attribute?) and .text() will not work on input elem>me m>nts. .val() gets the value of the input elem>me m>nt -- regardless of type. .text() gets the innerText (not HTML) of all the matched elem>me m>nts:...