2023年2月24日 · Use the pattern . to match any character once, .* to match any character zero or more times, .+ to match any character one or more times.

2024年10月28日 · Character class: Matches any one of the enclosed characters. You can specify a range of characters by using a hyphen, but if the hyphen appears as the first or last …

2023年8月27日 · In this Regular expression tutorial, learn to match a single character appearing once, a single character appearing multiple times, or a specific set of characters. In regular …

This means "match any number of characters that are either whitespace or non-whitespace" - effectively "match any string". Another option that only works for JavaScript (and is not …

2011年6月22日 · You can use this regular expression (any whitespace or any non-whitespace) as many times as possible down to and including 0. [\s\S]* This expression will match as few as …

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

To match "any character" including newline characters, you can use the "Dot-All" flag, denoted by (?s). This flag enables the . character to match absolutely any character, including line breaks. …

Character A single letter, digit, punctuation marker, whitespace, etc. Whitespace Any character that is not visible: space, tab, etc. String Any sequence of characters. Operator Characters …

Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

For example, the regex [02468] matches a single digit 0, 2, 4, 6, or 8; the regex [^02468] matches any single character other than 0, 2, 4, 6, or 8. Instead of listing all characters, you could use a …