Function or

Provide a fallback for a given Result. Behaves like a logical or: if the result value is an Ok, returns that result; otherwise, returns the defaultResult value.

This is useful when you want to make sure that something which takes a Result always ends up getting an Ok variant, by supplying a default value for the case that you currently have an Err.

import { ok, err, Result, or } from 'true-utils/result';

const okA = ok<string, string>('a');
const okB = ok<string, string>('b');
const anErr = err<string, string>(':wat:');
const anotherErr = err<string, string>(':headdesk:');

console.log(or(okB, okA).toString());  // Ok(A)
console.log(or(anErr, okA).toString());  // Ok(A)
console.log(or(okB, anErr).toString());  // Ok(B)
console.log(or(anotherErr, anErr).toString());  // Err(:headdesk:)
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Provide a fallback for a given Result. Behaves like a logical or: if the result value is an Ok, returns that result; otherwise, returns the defaultResult value.

This is useful when you want to make sure that something which takes a Result always ends up getting an Ok variant, by supplying a default value for the case that you currently have an Err.

import { ok, err, Result, or } from 'true-utils/result';

const okA = ok<string, string>('a');
const okB = ok<string, string>('b');
const anErr = err<string, string>(':wat:');
const anotherErr = err<string, string>(':headdesk:');

console.log(or(okB, okA).toString());  // Ok(A)
console.log(or(anErr, okA).toString());  // Ok(A)
console.log(or(okB, anErr).toString());  // Ok(B)
console.log(or(anotherErr, anErr).toString());  // Err(:headdesk:)
Copy