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HTML5: number input type that takes only integers?

...f chrome. It does not allow letters to be typed, but it does allow special characters to be inserted. – Malavos Feb 21 '15 at 21:39 3 ...
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Create a .txt file if doesn't exist, and if it does append a new line

... answered Jan 31 '18 at 19:38 R.ChaR.Cha 62566 silver badges1212 bronze badges ...
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How to split a string into an array of characters in Python?

... to look around the web for answers to splitting a string into an array of characters but I can't seem to find a simple method ...
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Can lambda functions be templated?

... std::cout << identity(t) << std::endl; } int main(int argc, char *argv[]) { std::string s("My string"); boring_template_fn(s); boring_template_fn(1024); boring_template_fn(true); } Prints: My string 1024 1 I've found this technique is helps when working with templ...
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Remove carriage return in Unix

...many shells on many terminals, ctrl-V ctrl-M will produce a literal ctrl-M character). – tripleee Aug 25 '14 at 10:55 ...
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Can an int be null in Java?

... primitive types,we have fixed memory size i.e for int we have 4 bytes and char we have 2 bytes. And null is used only for objects because there memory size is not fixed. So by default we have, int a=0; and not int a=null; Same with other primitive types and hence null is only used for...
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How to grep a text file which contains some binary data?

...<test.log | grep whatever This will change anything less than a space character (except newline) and anything greater than 126, into a . character, leaving only the printables. If you want every "illegal" character replaced by a different one, you can use something like the following C progr...
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How to HTML encode/escape a string? Is there a built-in?

...d string that I want to show as text in an HTML page. I need to escape the chars ' < ' and ' & ' as HTML entities. The less fuss the better. ...
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NSString tokenize in Objective-C

... @Adam, I think what you wanted was componentsSeparatedByCharactersInSet. See answer below. – Wienke Aug 28 '12 at 0:01 add a comment  |  ...
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How do I check if a variable exists in a list in BASH

... give false positive if the user input contains regular expression special characters, for example x=. – glenn jackman Nov 9 '11 at 11:41 ...