function assert.notEqual
Usage in Deno
import assert from "node:assert";
notEqual(actual: unknown,expected: unknown,message?: string | Error,): void
Strict assertion mode
An alias of notStrictEqual.
Legacy assertion mode
Stability: 3 - Legacy: Use notStrictEqual instead.
Tests shallow, coercive inequality with the !=
operator. NaN
is
specially handled and treated as being identical if both sides are NaN
.
import assert from 'node:assert'; assert.notEqual(1, 2); // OK assert.notEqual(1, 1); // AssertionError: 1 != 1 assert.notEqual(1, '1'); // AssertionError: 1 != '1'
If the values are 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