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  2. JavaScript
  3. JavaScript
  5. AggregateError
  6. AggregateError: errors
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AggregateError: errors

Baseline Widely available

This feature is well established and works across many devices and browser versions. Its been available across browsers since 2020 9.

AggregateError errors .

In this article

Array, AggregateError() .

Property attributes of AggregateError: errors

errors

js
try {
  throw new AggregateError(
    // An iterable of errors
    new Set([new Error("some error"), new Error("another error")]),
    "Multiple errors thrown",
  );
} catch (err) {
  console.log(err.errors);
  // [
  //   Error: some error,
  //   Error: another error
  // ]
}

Specification
ECMAScript 2027 LanguageSpecification
# sec-aggregate-error

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  2. AggregateError
    1. AggregateError() constructor
    1. AggregateError: errors
  6. Error
    1. Error()
    1. captureStackTrace()
    2. isError()
    1. stackTraceLimit
    1. Error.prototype.toString()
    1. Error: cause
    2. Error: columnNumber
    3. Error: fileName
    4. Error: lineNumber
    5. Error: message
    6. Error.prototype.name
    7. Error.prototype.stack
  12. Object/Function
    1. Function.prototype.apply()
    2. Function.prototype.bind()
    3. Function.prototype.call()
    4. Function.prototype.toSource()
    5. Function.prototype[@@hasInstance]()
    1. Function: displayName
    2. Function.prototype.length
    3. Function: name
    4. Function
    5. Function.arguments
    6. Function.prototype.caller
    1. Object.prototype.__defineGetter__()
    2. Object.prototype.__defineSetter__()
    3. Object.prototype.__lookupGetter__()
    4. Object.prototype.__lookupSetter__()
    5. Object.prototype.hasOwnProperty()
    6. Object.prototype.isPrototypeOf()
    7. Object.prototype.propertyIsEnumerable()
    8. Object.prototype.toLocaleString()
    9. Object.prototype.toString()
    10. Object.prototype.valueOf()
    1. Object.prototype.__proto__
    2. Object.prototype.constructor
  18. EvalError
  19. InternalError
  20. RangeError
  21. ReferenceError
  22. SyntaxError
  23. TypeError
  24. URIError
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