Word.ws English Dictionary

fat arrow

fat arrow noun: the => symbol, which has specific meanings in various programming languages.

Noun

fat arrow (plural fat arrows)

  1. The => symbol, which has specific meanings in various programming languages.
    • 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, Mark E. Daggett, Expert JavaScript, →ISBN, page 39
    • A constant can't be used on the left-hand side of a fat arrow (=>) because that turns it into a string.2013, Peter Scott, Perl Medic: Transforming Legacy Code, →ISBN, page 78

Forms of fat arrow

pluralfat arrows

Origin of fat arrow

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

Questions about fat arrow

What does fat arrow mean?
Fat arrow means the => symbol, which has specific meanings in various programming languages.
What part of speech is fat arrow?
Fat arrow is a noun.
What is the plural of fat arrow?
The plural of fat arrow is fat arrows.

Words near fat arrow in the dictionary

  1. fat
  2. fat acceptance
  3. fat activist
  4. fat activists
  5. fat and happy
  6. fat arrow
  7. fat arrows
  8. fat as a barrel
  9. fat as a fool
  10. fat as a house
  11. fat as a pig

Source and license

Adapted from Wiktionary: fat arrow (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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