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How do I remove all non alphanumeric characters from a string except dash?

How do I remove all non alphanumeric characters from a string except dash and space characters? 13 Answers ...
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Random alpha-numeric string in JavaScript? [duplicate]

... If you only want to allow specific characters, you could also do it like this: function randomString(length, chars) { var result = ''; for (var i = length; i > 0; --i) result += chars[Math.floor(Math.random() * chars.length)]; return result; } ...
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Avoid trailing zeroes in printf()

...") the number to a string buffer then manipulate the string to only have N characters past the decimal point. Assuming your number is in the variable num, the following function will remove all but the first N decimals, then strip off the trailing zeros (and decimal point if they were all zeros). ...
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Difference between String replace() and replaceAll()

... In java.lang.String, the replace method either takes a pair of char's or a pair of CharSequence's (of which String is a subclass, so it'll happily take a pair of String's). The replace method will replace all occurrences of a char or CharSequence. On the other hand, both String arguments...
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How can I make Visual Studio wrap lines at 80 characters?

...ions >> Text Editor >> All Languages >> General >> Select Word Wrap. I dont know if you can select a specific number of columns? share | improve this answer | ...
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Convert character to ASCII numeric value in java

I have String name = "admin"; then I do String charValue = name.substring(0,1); //charValue="a" 22 Answers ...
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xtree(1796): warning C4800: “int”: 将值强制为布尔值“true”或“false...

...ng,CPTCensorStatusItem *>>,false>, 1> _Ty1=std::basic_string<char,std::char_traits<char>,std::allocator<char>>, 1> _Ty2=CPTCensorStatusItem *, 1> _Valty=std::pair<std::basic_string<char,std::char_traits<char>,std::allocator<char>>,CPTCensorStatusItem *> 1> ...
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Why use pointers? [closed]

...and much confusion. ;-) If we talk about simple data types such as int and char there is little difference between an array and a pointer. These declarations are very similar (but not the same - e.g., sizeof will return different values): char* a = "Hello"; char a[] = "Hello"; You can reach any e...
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Regex to Match Symbols: !$%^&*()_+|~-=`{}[]:";'?,./

...al letters represent the negation of their lowercase counterparts. \W will select all non "word" characters equivalent to [^a-zA-Z0-9_] \S will select all non "whitespace" characters equivalent to [ \t\n\r\f\v] _ will select "_" because we negate it when using the \W and need to add it back in ...
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How to print (using cout) a number in binary form?

...senting the value, then stream that to cout. #include &lt;bitset&gt; ... char a = -58; std::bitset&lt;8&gt; x(a); std::cout &lt;&lt; x &lt;&lt; '\n'; short c = -315; std::bitset&lt;16&gt; y(c); std::cout &lt;&lt; y &lt;&lt; '\n'; ...