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Documentation / listr2 / ListrError

Class: ListrError<Ctx>

Defined in: packages/listr2/src/interfaces/listr-error.interface.ts:12

Internal error handling mechanism for Listr collects the errors and details for a failed task.

See

https://listr2.kilic.dev/task/error-handling.html

Extends

  • Error

Type Parameters

Ctx

Ctx extends ListrContext = ListrContext

Constructors

Constructor

new ListrError<Ctx>(error, type, task): ListrError<Ctx>

Defined in: packages/listr2/src/interfaces/listr-error.interface.ts:16

Parameters

error

Error

type

ListrErrorTypes

task

ListrTaskObject<Ctx, typeof ListrRenderer, typeof ListrRenderer>

Returns

ListrError<Ctx>

Overrides

Error.constructor

Properties

stackTraceLimit

static stackTraceLimit: number

Defined in: node_modules/.pnpm/@[email protected]/node_modules/@types/node/globals.d.ts:162

The Error.stackTraceLimit property specifies the number of stack frames collected by a stack trace (whether generated by new Error().stack or Error.captureStackTrace(obj)).

The default value is 10 but may be set to any valid JavaScript number. Changes will affect any stack trace captured after the value has been changed.

If set to a non-number value, or set to a negative number, stack traces will not capture any frames.

Inherited from

Error.stackTraceLimit


path

path: string[]

Defined in: packages/listr2/src/interfaces/listr-error.interface.ts:13


ctx

ctx: Ctx

Defined in: packages/listr2/src/interfaces/listr-error.interface.ts:14


error

error: Error

Defined in: packages/listr2/src/interfaces/listr-error.interface.ts:17


type

type: ListrErrorTypes

Defined in: packages/listr2/src/interfaces/listr-error.interface.ts:18


task

task: ListrTaskObject<Ctx, typeof ListrRenderer, typeof ListrRenderer>

Defined in: packages/listr2/src/interfaces/listr-error.interface.ts:19


cause?

optional cause: unknown

Defined in: node_modules/.pnpm/[email protected]/node_modules/typescript/lib/lib.es2022.error.d.ts:26

Inherited from

Error.cause


name

name: string

Defined in: node_modules/.pnpm/[email protected]/node_modules/typescript/lib/lib.es5.d.ts:1076

Inherited from

Error.name


message

message: string

Defined in: node_modules/.pnpm/[email protected]/node_modules/typescript/lib/lib.es5.d.ts:1077

Inherited from

Error.message


stack?

optional stack: string

Defined in: node_modules/.pnpm/[email protected]/node_modules/typescript/lib/lib.es5.d.ts:1078

Inherited from

Error.stack

Methods

captureStackTrace()

static captureStackTrace(targetObject, constructorOpt?): void

Defined in: node_modules/.pnpm/@[email protected]/node_modules/@types/node/globals.d.ts:146

Creates a .stack property on targetObject, which when accessed returns a string representing the location in the code at which Error.captureStackTrace() was called.

js
const myObject = {};
Error.captureStackTrace(myObject);
myObject.stack;  // Similar to `new Error().stack`

The first line of the trace will be prefixed with ${myObject.name}: ${myObject.message}.

The optional constructorOpt argument accepts a function. If given, all frames above constructorOpt, including constructorOpt, will be omitted from the generated stack trace.

The constructorOpt argument is useful for hiding implementation details of error generation from the user. For instance:

js
function a() {
  b();
}

function b() {
  c();
}

function c() {
  // Create an error without stack trace to avoid calculating the stack trace twice.
  const { stackTraceLimit } = Error;
  Error.stackTraceLimit = 0;
  const error = new Error();
  Error.stackTraceLimit = stackTraceLimit;

  // Capture the stack trace above function b
  Error.captureStackTrace(error, b); // Neither function c, nor b is included in the stack trace
  throw error;
}

a();

Parameters

targetObject

object

constructorOpt?

Function

Returns

void

Inherited from

Error.captureStackTrace


prepareStackTrace()

static prepareStackTrace(err, stackTraces): any

Defined in: node_modules/.pnpm/@[email protected]/node_modules/@types/node/globals.d.ts:150

Parameters

err

Error

stackTraces

CallSite[]

Returns

any

See

https://v8.dev/docs/stack-trace-api#customizing-stack-traces

Inherited from

Error.prepareStackTrace