Stage 1 Draft / July 18, 2025

Error.captureStackTrace

Introduction

20 Fundamental Objects

20.5 Error Objects

20.5.2 Properties of the Error Constructor

20.5.2.1 Error.captureStackTrace ( error [ , constructor ] )

  1. If error is not an Object, throw a TypeError exception.
  2. If IsCallable(constructor) is true, then
    1. Let string be an implementation-defined string that represents the current stack trace, with all stack frames above the topmost call to constructor, including that call, omitted from the stack trace.
    2. NOTE: This can be used to hide implementation details on the stack trace that aren't useful to user.
  3. Else,
    1. Let string be an implementation-defined string that represents the current stack trace.
  4. Perform ? SetterThatIgnoresPrototypeProperties(this value, error, "stack", string).
  5. Return undefined.

A Copyright & Software License

Copyright Notice

© 2025 Daniel Minor

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