Meanings
nounrest operator (plural rest operators)
plural rest operators
- computingAn operator that collapses a number of individual values into an array.
Origin
From rest (“that which remains”), as it is often used to provide the last few arguments to a function call.
Full word history & related roots →Cite this entry
APA
rest operator. (n.d.). In WatkinsX Dictionary. Retrieved November 3, 2026, from https://dictionary.watkinsx.com/word/rest%20operator
MLA
“rest operator.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/rest%20operator. Accessed November 3, 2026.
Chicago
WatkinsX Dictionary, s.v. “rest operator,” accessed November 3, 2026, https://dictionary.watkinsx.com/word/rest%20operator.
Source: rest operator on Wiktionary, CC BY-SA 4.0.