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How to format a string as a telephone number in C#

I have a string "1112224444' it is a telephone number. I want to format as 111-222-4444 before I store it in a file. It is on a datarecord and I would prefer to be able to do this without assigning a new variable. ...
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onKeyPress Vs. onKeyUp and onKeyDown

... an empty input element: The value of the input element will be an empty string (old value) inside the keypress handler The value of the input element will be 1 (new value) inside the keyup handler. This is of critical importance if you are doing something that relies on knowing the new value af...
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Using 'starts with' selector on individual class names

.... It would be marginally faster (at best) because it would not have to substring the class attribute. Negligible. – Josh Stodola Feb 1 '10 at 16:58 2 ...
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How do emulators work and how are they written? [closed]

...reak it up into smaller chunks and emulate those chunks individually. Then string the whole lot together for the finished product. Much like a set of black boxes with inputs and outputs, which lends itself beautifully to object oriented programming. You can further subdivide these chunks to make l...
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How to concatenate stdin and a string?

How to I concatenate stdin to a string, like this? 9 Answers 9 ...
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How do I duplicate a whole line in Emacs?

...ditor, but in Emacs there's always a customization. C-d is bound to delete-char by default, so how about C-c C-d? Just add the following to your .emacs: (global-set-key "\C-c\C-d" "\C-a\C- \C-n\M-w\C-y") (@Nathan's elisp version is probably preferable, because it won't break if any of the key bin...
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How to append data to div using JavaScript?

... Try this: var div = document.getElementById('divID'); div.innerHTML += 'Extra stuff'; share | improve this answer | follow | ...
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scale Image in an UIButton to AspectFit?

...CPU cycles. This is the category I'm using to scale an image : UIImage+Extra.h @interface UIImage (Extras) - (UIImage *)imageByScalingProportionallyToSize:(CGSize)targetSize; @end; UIImage+Extra.m @implementation UIImage (Extras) - (UIImage *)imageByScalingProportionallyToSize:(CGSize)targe...
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How to print like printf in Python3?

...voked: print ("Hi") In both versions, % is an operator which requires a string on the left-hand side and a value or a tuple of values or a mapping object (like dict) on the right-hand side. So, your line ought to look like this: print("a=%d,b=%d" % (f(x,n),g(x,n))) Also, the recommendation fo...
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How to get current location in Android [duplicate]

... You may also need @Override public void onStatusChanged(String provider, int status, Bundle extras) { } @Override public void onProviderEnabled(String provider) { } @Override public void onProviderDisabled(String provider) { } – Ege K...