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List comprehension in Ruby
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If you really want to, you can create an Array#comprehend method like this:
class Array
def comprehend(&block)
return self if block.nil?
self.collect(&block).compact
end
end
some_array = [1, 2, 3, 4, 5, 6]
new_array = some_array.comprehend {|x| x * 3 if x % 2 =...
How to replace a set of tokens in a Java String?
I have the following template String: "Hello [Name] Please find attached [Invoice Number] which is due on [Due Date]" .
15...
How do I rename the extension for a bunch of files?
In a directory, I have a bunch of *.html files. I'd like to rename them all to *.txt
24 Answers
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Use jQuery to hide a DIV when the user clicks outside of it
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Had the same problem, came up with this easy solution. It's even working recursive:
$(document).mouseup(function(e)
{
var container = $("YOUR CONTAINER SELECTOR");
// if the target of the click isn't the container nor a desc...
Mocking python function based on input arguments
... calls to the mock return. The side_effect function is called with
the same arguments as the mock. This allows you to vary the return
value of the call dynamically, based on the input:
>>> def side_effect(value):
... return value + 1
...
>>> m = MagicMock(side_effect=side_...
How can I use Timer (formerly NSTimer) in Swift?
...() {
super.viewDidLoad()
// Swift block syntax (iOS 10+)
let timer = Timer(timeInterval: 0.4, repeats: true) { _ in print("Done!") }
// Swift >=3 selector syntax
let timer = Timer.scheduledTimer(timeInterval: 0.4, target: self, selector: #selector(self.update), userInfo: nil, ...
Add swipe to delete UITableViewCell
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Novice iOS programmer here - is there a good way to learn what methods need to be implemented for handling (seemingly) basic functionality like this? The documentation seems a bit verbose and hard to follow for my newbishnes.
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How to use performSelector:withObject:afterDelay: with primitive types in Cocoa?
The NSObject method performSelector:withObject:afterDelay: allows me to invoke a method on the object with an object argument after a certain time. It cannot be used for methods with a non-object argument (e.g. ints, floats, structs, non-object pointers, etc.).
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Javascript add leading zeroes to date
...ked - date format YYYY-MM-DD jsfiddle.net/j6qJp/1 It may be useful for somebody. Thanks
– tomexx
Oct 31 '12 at 13:59
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How to distinguish mouse “click” and “drag”
I use jQuery.click to handle the mouse click event on Raphael graph, meanwhile, I need to handle mouse drag event, mouse drag consists of mousedown , mouseup and mousemove in Raphael.
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