2013年4月13日 · When you have two alternatives where one is an extension of the other, put the longer one first, otherwise it will have no opportunity to be matched. A classic "or" would be |. …

I have the following situation: The correct solution for the word would be "part1, part2". The user should be able to enter either "part1" (answer 1), "part2" (answer 2) or "part1, part2" (answer …

2018年8月22日 · I am trying Javascript's regular expression. I understand that ' | ' is used to or-ing two regular expression. I created a regex /^a*|b*$/ , and I want it to detect any string that …

2012年9月19日 · Example to create logical "or" or "||" operations in regular expressions - a simple tutorial as part of the OCPsoft regular expressions guide.

2024年10月28日 · Matches the same substring matched by the nth capturing group in the regular expression (counting left parentheses). For example, /apple(,)\sorange\1/ matches "apple, …

2025年3月1日 · Using “Regex OR” in Various Programming Languages Regex OR in Python. Python’s built-in re module offers robust support for regular expressions, making it simple to …

2024年4月12日 · A regular expression (regex) is a sequence of characters that define a search pattern. Here’s how to write regular expressions: Start by understanding the special characters …

2022年8月7日 · Alternation is the term in regular expression that is actually a simple “OR”. In a regular expression it is denoted with a vertical line character |. For instance, we need to find …

On each line, in the leftmost column, you will find a new element of regex syntax. The next column, "Legend", explains what the element means (or encodes) in the regex syntax.

I want to write a regex that matches either: or. How do I do it? I guess an imperfect way to go about it would be: While this does work in my situation, i want to know the right way to do this. …