how to assert in javascript

1//Code prints "Hello, ${username}!" and defaults to Jasmine if no username
2//is provided
3
4const hello = require('../hello.js');
5const assert = require('assert'); //must require the assert
6
7describe("hello", function(){
8it("should return custom message when name is specified", function(){
9   assert.strictEqual(hello("Jasmine"), "Hello, Jasmine!");
10	});
11});
12
13assert.strictEqual(hello("Jasmine"), "Hello, Jasmine!");