function assert.strictEqual
Usage in Deno
import assert from "node:assert";
strictEqual<T>(actual: unknown,expected: T,message?: string | Error,): asserts actual is T
Tests strict equality between the actual and expected parameters as
determined by Object.is().
import assert from 'node:assert/strict';
assert.strictEqual(1, 2);
// AssertionError [ERR_ASSERTION]: Expected inputs to be strictly equal:
//
// 1 !== 2
assert.strictEqual(1, 1);
// OK
assert.strictEqual('Hello foobar', 'Hello World!');
// AssertionError [ERR_ASSERTION]: Expected inputs to be strictly equal:
// + actual - expected
//
// + 'Hello foobar'
// - 'Hello World!'
// ^
const apples = 1;
const oranges = 2;
assert.strictEqual(apples, oranges, `apples ${apples} !== oranges ${oranges}`);
// AssertionError [ERR_ASSERTION]: apples 1 !== oranges 2
assert.strictEqual(1, '1', new TypeError('Inputs are not identical'));
// TypeError: Inputs are not identical
If the values are not strictly equal, 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.
asserts actual is T