function default.ok
Usage in Deno
```typescript import mod from "node:node__assert.d.ts"; ```
ok(value: unknown,message?: string | Error,): asserts value
Tests if `value` is truthy. It is equivalent to `assert.equal(!!value, true, message)`.
If `value` is not truthy, an `AssertionError` is thrown with a `message` property set equal to the value of the `message` parameter. If the `message` parameter is `undefined`, a default
error message is assigned. If the `message` parameter is an instance of an `Error` then it will be thrown instead of the `AssertionError`.
If no arguments are passed in at all `message` will be set to the string:`` 'No value argument passed to `assert.ok()`' ``.
Be aware that in the `repl` the error message will be different to the one
thrown in a file! See below for further details.
```js
import assert from 'node:assert/strict';
assert.ok(true);
// OK
assert.ok(1);
// OK
assert.ok();
// AssertionError: No value argument passed to `assert.ok()`
assert.ok(false, 'it\'s false');
// AssertionError: it's false
// In the repl:
assert.ok(typeof 123 === 'string');
// AssertionError: false == true
// In a file (e.g. test.js):
assert.ok(typeof 123 === 'string');
// AssertionError: The expression evaluated to a falsy value:
//
// assert.ok(typeof 123 === 'string')
assert.ok(false);
// AssertionError: The expression evaluated to a falsy value:
//
// assert.ok(false)
assert.ok(0);
// AssertionError: The expression evaluated to a falsy value:
//
// assert.ok(0)
```
```js
import assert from 'node:assert/strict';
// Using `assert()` works the same:
assert(0);
// AssertionError: The expression evaluated to a falsy value:
//
// assert(0)
```
asserts value