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  1.        A loop used to repeat code a specific number of times.
  2.    A reusable unit of code containing exports and imports.
  3. A mechanism for reusing and extending code between classes.
  4.     Combines changes from different branches.
  5.       A comparison to check if two values are the same.
  6.      A data type for defining named constant values.
  7.        A function that runs immediately after being defined.
  8.      Creators of an open-source browser and web technologies.
  9.       Apple's web browser for macOS and iOS devices.
  10.        A function that produces an iterable sequence of values.
  11.      A permissive open-source software license.
  12.    Placing selectors or rules inside others for hierarchy.
  13.    Reusable block of styles for dynamic inclusion.