RegExp для повсякденних задач? Але не спішіть використовувати .exec метод, доки не дочитаєте до кінця😁
https://eloquentjavascript.net/09_regexp.html

Шпаргалка на всякий:
/abc/ A sequence of characters
/[abc]/ Any character from a set of characters
/[^abc]/ Any character not in a set of characters
/[0-9]/ Any character in a range of characters
/x+/ One or more occurrences of the pattern x
/x+?/ One or more occurrences, nongreedy
/x*/ Zero or more occurrences
/x?/ Zero or one occurrence
/x{2,4}/ Two to four occurrences
/(abc)/ A group
/a|b|c/ Any one of several patterns
/\d/ Any digit character
/\w/ An alphanumeric character (“word character”)
/\s/ Any whitespace character
/./ Any character except newlines
/\b/ A word boundary
/^/ Start of input
/$/ End of input

#tips #regexp