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Can you supply arguments to the map(&:method) syntax in Ruby?
You're probably familiar with the following Ruby shorthand ( a is an array):
7 Answers
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How to print a dictionary's key?
...You have the keys() method, which gives you a python list of all the keys, and you have the iteritems() method, which returns key-value pairs, so
for key, value in mydic.iteritems() :
print key, value
Python 3 version:
for key, value in mydic.items() :
print (key, value)
So you have a ...
iTerm 2: How to set keyboard shortcuts to jump to beginning/end of line?
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Do you know what the code/sequence for Command+Delete is? (clear out the prompt)
– Steven Lu
Mar 31 '13 at 18:37
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WPF Data Binding and Validation Rules Best Practices
...plex.com), which includes a demo of best practices validation in WPF+MVVM, and uses IDataErrorInfo
– Mark Heath
Sep 4 '09 at 6:37
3
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Change UITextField and UITextView Cursor / Caret Color
...ndering about changing the color of the cursor / caret in a UITextField (And UITextView if its the same answer) in iOS. I've seen answers for OSX development, but nothing for iOS.
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Get only part of an Array in Java?
... part of it. I know in Python you can do something like this array[index:] and it returns the array from the index. Is something like this possible in Java.
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How do I pass an object from one activity to another on Android? [duplicate]
I need to be able to use one object in multiple activities within my app, and it needs to be the same object. What is the best way to do this?
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Selecting the last value of a column
...spreadsheet with some values in column G. Some cells are empty in between, and I need to get the last value from that column into another cell.
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Big-oh vs big-theta [duplicate]
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Big-O is an upper bound.
Big-Theta is a tight bound, i.e. upper and lower bound.
When people only worry about what's the worst that can happen, big-O is sufficient; i.e. it says that "it can't get much worse than this". The tighter the bound the better, of course, but a tight bound isn't...
Sort objects in ArrayList by date?
...MyObject o) {
return getDateTime().compareTo(o.getDateTime());
}
}
And then you sort it by calling:
Collections.sort(myList);
However sometimes you don't want to change your model, like when you want to sort on several different properties. In that case, you can create comparator on the f...