2 дек. 2011 г. · I'm trying to create a Regex test in JavaScript that will test a string to contain any of these characters: !$%^&*()_+|~-=`{}[]:";'<>?,./

8 апр. 2017 г. · The regular expression for checking if a string is composed of only one repeated symbol is ^(.)\1*$. If you only want lines composed by '+', then it's ^\++$.

5 авг. 2013 г. · I want to write a simple regular expression to check if in given string exist any special character. My regex works but I don't know why it also includes all ...

25 сент. 2015 г. · I need regex that will allow only Latin characters, digits and all other symbols(but not whitespace) thanks!

29 нояб. 2017 г. · Use the hat in square brackets [^] to match any single character except for any of the characters that come after the hat ^.

7 мая 2010 г. · How can I check with a regex that a string contains only certain allowed characters? · The "&" sign. · Parentheses "()" · Mathematical signs "-" ...

29 авг. 2016 г. · I'm trying to create a Regex test in JavaScript that will test a string to contain any of these characters: a...z A..Z 0..9 and & - . '

2 окт. 2012 г. · I want a regular expression to match a string that may or may not start with plus symbol and then contain any number of digits.

20 февр. 2011 г. · To accept any symbol, .* should do the trick. E.g.: fields[i] = fields[i].replaceAll("\\<.*\\>", "");.

8 нояб. 2013 г. · One way of doing it is using the grep command, like this: grep -qv "[^0-9a-z-]" <<< $STRING Then you ask for the grep returned value with the following: