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Regular expression for matching ANSI escape codes
Get the first fulfilled promise that satisfies the provided testing function
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Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.
Get the native type of a value.
Regular expression for matching a shebang line
Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet
Returns true if a string has an extglob.
Get details about the current Continuous Integration environment
Match balanced character pairs, like "{" and "}"
Check if a value is a plain object
Returns true if a value is a plain object, array or function.
Give a regex, get a robust predicate function that tests it against a string.
Delightful JavaScript Testing.
Delightful JavaScript Testing.
Check if a value is an object
Type check values
Detect if the current environment is a CI server
Parameterised tests for Jest
Delightful JavaScript Testing.
BDD/TDD assertion library for node.js and the browser. Test framework agnostic.