fat arrow

English

Etymology

fat +‎ arrow, because of its thickness compared to ->.

Noun

fat arrow (plural fat arrows)

  1. (computing) The => symbol, which has specific meanings in various programming languages.
    • 2013, Mark E. Daggett, Expert JavaScript, →ISBN, page 39:
      The fat arrow is a new shorter way to write functions using '=>' instead of 'function() {}', and will look familiar to anyone who has used CoffeeScript.
    • 2013, Peter Scott, Perl Medic: Transforming Legacy Code, →ISBN, page 78:
      A constant can't be used on the left-hand side of a fat arrow (=>) because that turns it into a string.

Anagrams
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