1. CSS text-box-trim & text-box-edge

    Provides the ability to remove the vertical space appearing above and below text glyphs, allowing more precise positioning and alignment. Previously specified as the `leading-trim` & `text-edge` properties.

  2. ECMAScript 5

    Full support for the ECMAScript 5 specification. Features include `Function.prototype.bind`, Array methods like `indexOf`, `forEach`, `map` & `filter`, Object methods like `defineProperty`, `create` & `keys`, the `trim` method on Strings and many more.

  3. domtokenlist api: trims whitespace

  4. css property: margin-trim

  5. css property: margin-trim: block

  6. css property: margin-trim: block-end

  7. css property: margin-trim: block-start

  8. css property: margin-trim: inline

  9. css property: margin-trim: inline-end

  10. css property: margin-trim: inline-start

  11. css property: margin-trim: none

  12. css property: text-spacing-trim

  13. css property: text-spacing-trim: normal

  14. css property: text-spacing-trim: space-all

  15. css property: text-spacing-trim: space-first

  16. css property: text-spacing-trim: trim-start

  17. javascript built-in: string: trim

  18. javascript built-in: string: trimend

  19. javascript built-in: string: trimstart

  20. ecmascript 2019 (es10)