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How do you match only valid roman numerals with a regular expression?
...0,3})$
Breaking it down, M{0,4} specifies the thousands section and basically restrains it to between 0 and 4000. It's a relatively simple:
0: <empty> matched by M{0}
1000: M matched by M{1}
2000: MM matched by M{2}
3000: MMM matched by M{3}
4000: MMMM matched by M...
iPad Web App: Detect Virtual Keyboard Using JavaScript in Safari?
... the size of the user interface to the iPad's window size, the user is normally unable to scroll. In other words, if I set the window's scrollTop, it will remain at 0.
If, on the other hand, the keyboard is shown, scrolling suddenly works. So I can set scrollTop, immediately test its value, and the...
How to exit from the application and show the home screen?
...
will it dealocate all the resources? Because when I exit the app this way and after some time I click the app icon again. It starts from where I left it. That means the app was still running in the background.
– Adil Mali...
Get the index of the nth occurrence of a string?
...
That's basically what you need to do - or at least, it's the easiest solution. All you'd be "wasting" is the cost of n method invocations - you won't actually be checking any case twice, if you think about it. (IndexOf will return as soo...
Easy way to turn JavaScript array into comma-separated list?
...ers have indicated with an upvote) but more helpful might have been to actually provide the alternative answer with example code?
– Chris
Jul 8 '12 at 10:06
...
Why is whitespace sometimes needed around metacharacters?
...s a list of characters that separate tokens in BASH. These characters are called metacharacters and they are |, &, ;, (, ), <, >, space and tab. On the other hand, curly braces ({ and }) are just ordinary characters that make up words.
Omitting the second space before } will do, since &am...
How can I undo a `git commit` locally and on a remote after `git push`
...
The reference is called HEAD (case sensitive)
– dunni
Jun 23 '11 at 19:36
26
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Is there a way to create your own html tag in HTML5?
...? and the HTML5 spec).
Let's assume you want to use a custom tag element called <stack>. Here's what you should do...
STEP 1
Normalize its attributes in your CSS Stylesheet (think css reset) -
Example:
stack{display:block;margin:0;padding:0;border:0; ... }
STEP 2
To get it to work in ...
Found conflicts between different versions of the same dependent assembly that could not be resolved
...s say this, they don't make it explicit, so I will....
On VS2013.2, to actually trigger the emission of the cited information, you need to not read the message, which says:
C:\Program Files (x86)\MSBuild\12.0\bin\Microsoft.Common.CurrentVersion.targets(1697,5): warning MSB3277: Found conflicts betw...
When is the init() function run?
...The = 0
}
func main() {
if WhatIsThe == 0 {
fmt.Println("It's all a lie.")
}
}
AnswerToLife() is guaranteed to run before init() is called, and init() is guaranteed to run before main() is called.
Keep in mind that init() is always called, regardless if there's main or not, so if...