Trigger an error in TypeScript with an embedded inner error

Question

Trigger an error in TypeScript with an embedded inner error

Is it possible to throw an Error with an inner Error in TypeScript, similar to how it's done in C#?

In C#, you can achieve this by catching the exception and throwing a new one with the original exception as its inner exception:

try 
{
  var a = 3;
  var b = 0;
  var c = a/b;
}
catch(Exception ex)
{
  throw new Exception("Your custom message", ex);
}

Is there a way to accomplish something similar in TypeScript? Perhaps with the help of an NPM package? I have searched for such a package but haven't been able to find one so far.

typescript ecmascript-6

Answer 1

Answer №1

To create a custom error class, you will need to follow a structure similar to this:

export class CustomError extends Error {
    public innerIssue: Error | undefined;
    // add any other necessary variable definitions

    public constructor(message?: string, innerIssue?: Error) {
        super(message);
        this.innerIssue = innerIssue;
        // include any additional logic or variable assignments if required
    }
}

Then, within your code implementation:

try 
{
  const x = 10;
  const y = 0;
  const z = x/y;
} catch(err) {
  throw new CustomError("This is a custom error message", err as Error);
}

Answer 2

To create a custom error class, you will need to follow a structure similar to this:

export class CustomError extends Error {
    public innerIssue: Error | undefined;
    // add any other necessary variable definitions

    public constructor(message?: string, innerIssue?: Error) {
        super(message);
        this.innerIssue = innerIssue;
        // include any additional logic or variable assignments if required
    }
}

Then, within your code implementation:

try 
{
  const x = 10;
  const y = 0;
  const z = x/y;
} catch(err) {
  throw new CustomError("This is a custom error message", err as Error);
}

Trigger an error in TypeScript with an embedded inner error

Answer №1

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