Regular Expressions 101

Order By

Filter by Flavor

Community Patterns

Search among 18,000 community submitted regex patterns...

Community Library Entry

Regular Expression
Rust

r#"

(?:(?:import|export)[^`'"]*from\s+[`'"])(?<from>[^`'"./][^`'"]*)(?:[`'"])|(?:\bimport)(?:\s+|\s*\(\s*)(?:[`'"])(?<plain>[^`'"./][^`'"]*)(?:[`'"])

Open regex in editor

Description

This regex can be used on a JavaScript/TypeScript file to find imports from third-party packages. This is useful for determining what to put in dependencies/peerDependencies. This is a Rust regex, which makes it easy to use with rg (ripgrep). Pro tip: combine rg with sort -u to get a list of all packages for your JS/TS project!

Based on a similar PCE2 regex

Submitted by Nikita Karamov - 4 months ago

Order By

Filter by Flavor

Community Patterns

Extract All Matches from a Text

Match Postal Codes (US Format)

Match URL with Optional Protocol

Extract HTML Content Between Tags

Match Nested Parentheses and Brackets

Match Word Characters with Optional Hyphens

Match a date in DD-MM-YYYY format

Match a string with alternating uppercase and lowercase letters

Match a string with nested brackets

Match a string with specific length and content

Match a string with specific length and content

Match a valid Twitter handle

Match a valid Twitter handle

Match a string with no consecutive duplicate characters

Match a string with a specific pattern

Match a string with optional trailing punctuation

Match a valid GUID/UUID

Match a string with repeating characters separated by a comma (e.g., "a,b,c")

Match a valid MAC address (with optional delimiters)

HTML Tag Matching

Community Library Entry

Regular ExpressionRust

Description

Regular Expression
Rust