function assert.notDeepEqual
Usage in Deno
import assert from "node:assert";
notDeepEqual(actual: unknown,expected: unknown,message?: string | Error,): void
Strict assertion mode
An alias of notDeepStrictEqual.
Legacy assertion mode
Stability: 3 - Legacy: Use notDeepStrictEqual instead.
Tests for any deep inequality. Opposite of deepEqual.
import assert from 'node:assert';
const obj1 = {
a: {
b: 1,
},
};
const obj2 = {
a: {
b: 2,
},
};
const obj3 = {
a: {
b: 1,
},
};
const obj4 = { __proto__: obj1 };
assert.notDeepEqual(obj1, obj1);
// AssertionError: { a: { b: 1 } } notDeepEqual { a: { b: 1 } }
assert.notDeepEqual(obj1, obj2);
// OK
assert.notDeepEqual(obj1, obj3);
// AssertionError: { a: { b: 1 } } notDeepEqual { a: { b: 1 } }
assert.notDeepEqual(obj1, obj4);
// OK
If the values are deeply 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.
void