JS: String.prototype.endsWith

By Xah Lee. Date: . Last updated: .

New in ES2015.

s.endsWith ( searchString )

s.endsWith ( searchString, endPosition )

Return true if s end with searchString. Else, returns false.

If endPosition is given, it is assumed to be the end of string. For example, "abcde".endsWith (str, 3) is the same as "abc".endsWith (str).

endPosition is negative, count from right.

const ss = "abcd";

console.log ( ss.endsWith("cd") ); // true
console.log ( ss.endsWith("cd", 4) ); // true
console.log ( ss.endsWith("a", 1) ); // true
console.log ( ss.endsWith("ab", 2) ); // true

console.log ( ss.endsWith("b") );  // false
console.log ( ss.endsWith("bc", 2) ); // false

Reference

ECMAScript 2015 §Text Processing#sec-string.prototype.endswith

String Topic

  1. JS: String Overview
  2. JS: Template String
  3. JS: String Escape Sequence
  4. JS: Unicode Escape Sequence
  5. JS: String Object
  6. JS: String.prototype
  7. JS: String to Number
  8. JS: Encode URL, Escape String
  9. JS: Format Number
  10. JS: JSON
  11. JS: Source Code Encoding
  12. JS: Allowed Characters in Identifier
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