ECMAScript® 2021 Language Specification

Draft ECMA-262 / February 25, 2021

14.16 The debugger Statement

Syntax

DebuggerStatement : debugger ;

14.16.1 Runtime Semantics: Evaluation

Note

Evaluating a DebuggerStatement may allow an implementation to cause a breakpoint when run under a debugger. If a debugger is not present or active this statement has no observable effect.

 DebuggerStatement : debugger ;
  1. If an implementation-defined debugging facility is available and enabled, then
    1. Perform an implementation-defined debugging action.
    2. Let result be an implementation-defined Completion value.
  2. Else,
    1. Let result be NormalCompletion(empty).
  3. Return result.