External module "promise/try-catch"

tryCatch

• tryCatch<T, E>(promise: Promise<T>, defaultResult?: T): Promise<[E, T]>

• Try Catch

  Merges result and error in the same callback

  ---

  Example:

  import { tryCatch } from "@thalesrc/js-utils/promise";
  
  async function fooFunction() {
    const promise = anAsyncCall();
    const [error, result] = await tryCatch(promise);
  
    if (error) {
      // handle error
    }
  
    // do stuff
  }
  

  Prototype Example:

  import "@thalesrc/js-utils/promise/proto/try-catch";
  
  async function fooFunction() {
    const [error, result] = await anAsyncCall().tryCatch();
  
    if (error) {
      // handle error
    }
  
    // do stuff
  }
  

  ---

  Type parameters

  • T

  • E

  Parameters

  • promise: Promise<T>

    Promise to try

  • Default value defaultResult: T = null

    Setting this will put the value into the result field when the promise throws error

  Returns Promise<[E, T]>

  Error and result array