1. asm.js

    An extraordinarily optimizable, low-level subset of JavaScript, intended to be a compile target from languages like C++.

  2. Audio Tracks

    Method of specifying and selecting between multiple audio tracks. Useful for providing audio descriptions, director's commentary, additional languages, alternative takes, etc.

  3. Input Method Editor API

    Provides scripted access to the Input Method Editor (IME). An IME is often used to input characters from East Asian languages by typing roman characters and selecting from the resulting suggestions.

  4. css property: hyphens: hyphenation dictionary for ethiopic script (mul-ethi, mul-ethi-*)

  5. css property: hyphens: hyphenation dictionary for ethiopic script (und-ethi, und-ethi-*)

  6. javascript built-in: intl: locale: language

  7. typescript