Endwith

Endwith is a term used in computing to describe the operation of testing whether a string ends with a given suffix. In practice, the precise function name varies by language, with common spellings such as endswith, endsWith, or end_with?. The concept is widely used in input validation, parsing, and pattern matching.

In Python, the string method endswith can accept a suffix string or a tuple of suffixes and optional start and end indices. In JavaScript, the String.prototype.endsWith method takes a search string and an optional length parameter. Ruby provides end_with? on the String class, which can take multiple suffixes and returns true if the string ends with any of them. Java exposes the endsWith method on any String instance, performing a straightforward suffix check. Go uses strings.HasSuffix to achieve the same result. C# exposes EndsWith on the string class. In SQL, end-of-string checks are typically done with pattern matching using LIKE with a trailing percent sign.

Notes: The behavior is generally case-sensitive and depends on the language’s Unicode handling. An empty suffix matches any string, and a suffix longer than the string yields false. When multiple suffixes are provided, some languages accept any match among them, while others may require explicit looping. Performance typically favors built-in implementations, which are optimized for common cases.

Origin: The term endwith is primarily a descriptive label in documentation and discussions; the exact keyword or method name varies by language.