CODE EXAMPLE FOR TYPESCRIPT

try catch error typescript

// doc: https://devblogs.microsoft.com/typescript/announcing-typescript-4-0/#unknown-on-catch
try {  /* ... */ }
catch (e: unknown) { // <-- note `e` has explicit `unknown` type
    e.message // errors
    if (typeof e === "string") {
        e.toUpperCase() // works, `e` narrowed to string
    } else if (e instanceof Error) {
        e.message // works, `e` narrowed to Error
    }
    // ... handle other error types 
}


// Typescript 4.4 added the ability to make unknown the default on catch variables using the useUnknownInCatchVariables  flag.