Salesforce Certified JavaScript Developer I Practice Test - Questions Answers, Page 4

A developer is asked to fix some bugs reported by users. To do that, the developer adds a breakpoint for debugging.

Function Car (maxSpeed, color){

This.maxspeed =masSpeed;

This.color = color;

Let carSpeed = document.getElementById(' CarSpeed');

Debugger;

Let fourWheels =new Car (carSpeed.value, 'red');

When the code execution stops at the breakpoint on line 06, which two types of information are available in the browser console ?

Choose 2 answers:

At Universal Containers, every team has its own way of copying JavaScript objects. The code Snippet shows an implementation from one team:

Function Person() { this.firstName = "John"; this.lastName = 'Doe'; This.name =() => ( console.log('Hello $(this.firstName) $(this.firstName)'); )} Const john = new Person (); Const dan = JSON.parse(JSON.stringify(john)); dan.firstName

='Dan'; dan.name(); What is the Output of the code execution?

Refer to the code below:

Let textValue = '1984';

Which code assignment shows a correct way to convert this string to an integer?

A developer writers the code below to calculate the factorial of a given number.

Function factorial(number) {

Return number + factorial(number -1);

} factorial(3); What is the result of executing line 04?

Given the following code:

Let x =null; console.log(typeof x); What is the output of the line 02?

Which function should a developer use to repeatedly execute code at a fixed interval ?

Refer to the code below:

Function changeValue(obj) {

Obj.value = obj.value/2;

}

Const objA = (value: 10);

Const objB = objA; changeValue(objB); Const result = objA.value; What is the value of result after the code executes?

Given HTML below:

<div>

<div id ="row-uc"> Universal Container</div>

<div id ="row-aa">Applied Shipping</div>

<div id ="row-bt"> Burlington Textiles </div>

</div>

Which statement adds the priority = account CSS class to the universal Containers row ?

Refer to the code below: const addBy = ? const addByEight =addBy(8); const sum = addBYEight(50); Which two functions can replace line 01 and return 58 to sum?

Choose 2 answers