Developer Tooling

REPL

/ˈrepəl/

Definition

Read-Eval-Print Loop — an interactive shell that reads input, evaluates it, prints the result, and repeats.

Example in context

"Run node in terminal for a JavaScript REPL — test expressions instantly without creating a file."

Related terms

Practice this term

Master REPL in context by working through exercises in the Developer Tooling module. You'll see the term used in real engineering scenarios with multiple-choice, fill-in-the-blank, and matching drills.