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How do you use a variable in a regular expression?
I would like to create a String.replaceAll() method in JavaScript and I'm thinking that using a regex would be most terse way to do it. However, I can't figure out how to pass a variable in to a regex. I can do this already which will replace all the instances of "B" with "A" .
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Semi-transparent color layer over background-image?
I have a DIV and I would like to put a pattern as background. This pattern is gray. So to make it a little more nice, I would like to put a light transparent color "layer" over. Below is what I tried but which did not work. Is there a way to put the colored layer over the background image?
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Variable name as a string in Javascript
Is there a way to get a variable name as a string in Javascript? (like NSStringFromSelector in Cocoa )
17 Answers
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Python None comparison: should I use “is” or ==?
My editor warns me when I compare my_var == None , but no warning when I use my_var is None .
3 Answers
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HTML5 dragleave fired when hovering a child element
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You just need to keep a reference counter, increment it when you get a dragenter, decrement when you get a dragleave. When the counter is at 0 - remove the class.
var counter = 0;
$('#drop').bind({
dragenter: function(ev) {
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How to adjust layout when soft keyboard appears
I would like to adjust/re-size the layout when the soft-keyboard activated, as below:
16 Answers
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How to convert comma-delimited string to list in Python?
...it(",")
>>> print my_list
['A', 'B', 'C', 'D', 'E']
If you want to convert it to a tuple, just
>>> print tuple(my_list)
('A', 'B', 'C', 'D', 'E')
If you are looking to append to a list, try this:
>>> my_list.append('F')
>>> print my_list
['A', 'B', 'C', 'D',...
What's the difference between “groups” and “captures” in .NET regular expressions?
...on what the difference between a "group" and a "capture" are when it comes to .NET's regular expression language. Consider the following C# code:
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jQuery Click fires twice when clicking on label
I am using jQuery to create custom radio buttons and i have a problem.
When clicking on the label that associated with the radio the click events fires twice, if i click only on the radio itself it's working fine (well actually it's not the radio i am clicking but the div that wraps the whole input ...
Add a UIView above all, even the navigation bar
I want to display, above any other views, even the navigation bar, a kind of "pop-up" view that looks like this:
17 Answers...