Class Try<T>

An inline try/catch statement class

Type Parameters

  • T

Hierarchy

  • Try

Constructors

constructor

Methods

catch catchAll finally

Constructors

constructor

  • Instantiate the class

    Type Parameters

    • T

    Parameters

    • tryFn: (() => T)

      Function to try running which may throw an error

        • (): T

        • Returns T

    Returns Try<T>

Properties

Private Optional Readonly #error

#error?: any

Private Optional Readonly #returnValue

#returnValue?: T

Private Readonly #state

#state: "error" | "success"

Methods

catch

  • Catch a specific error instance

    Returns

    Type Parameters

    • E extends (new (...args: any) => any)

    Parameters

    • type: E

      The error type to catch

    • catchFn: ((e: InstanceType<E>) => T)

      Function to return a new value if the try function threw the specified error type, which can itself throw an error to be caught

        • (e: InstanceType<E>): T

        • Parameters

          • e: InstanceType<E>

          Returns T

    Returns Try<T>

catchAll

  • Catch all errors

    Returns

    Parameters

    • catchFn: ((e: any) => T)

      Function to return a new value if the try function threw any error, which can itself throw an error to be caught

        • (e: any): T

        • Parameters

          • e: any

          Returns T

    Returns Try<T>

finally

  • Get the final value returned by the try or catch functions

    Returns

    Throws

    Will throw any error that has not been caught

    Parameters

    • Optional finallyFn: (() => void)

      Optional function to run at the end of the of the statement

        • (): void

        • Returns void

    Returns T

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