You define the Pet class as follows:
class Pet {
constructor(name, breed) {
this.name = name;
this.breed = breed;
this.show = function() {
var text = " < p > Your pet ' s name is " + name + " . The pet ' s breed is " + breed + " . < /p > " ; return text;
};
}
}
You need to derive a Dog class from the Pet class.
Complete the code by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct selection.

Explanation:
First blank: class Dog extends Pet {
Second blank: super(name, breed);
The correct syntax for deriving one JavaScript class from another is extends, so the derived class declaration must be class Dog extends Pet {. This creates Dog as a subclass of Pet, allowing Dog instances to inherit members defined by the Pet constructor, including name, breed, and the show() function assigned inside the parent constructor. Inside a derived class constructor, super() must be called before using this. The call super (name, breed); invokes the parent Pet constructor and passes the values required to initialize the inherited name and breed properties. Pet(name, breed); is incorrect because a class constructor cannot be invoked like a normal function. Pet.constructor(name, breed); is also incorrect because it does not call the parent constructor for the current instance. After super() runs, the Dog constructor can safely assign subclass-specific properties such as price and gender. References/topics: JavaScript classes, inheritance, extends, derived constructors, super(), custom class creation.

You need to contain overflowing text inside the element ' s border without creating unneeded scrollbars or losing text. Which attribute setting should you use?

• A. overflow: auto;
• B. overflow: scroll;
• C. overflow: visible;
• D. overflow: hidden;

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The ctx variable is the context of an HTML5 canvas object. What does the following HTML markup draw?
ctx.arc(x, y, r, 0, Math.PI, true);

• A. A square at the given point
• B. A line from one point to another
• C. A semicircle at the given point
• D. A circle at the given point

Explanation: Only visible for Lead2Passed members. You can sign-up / login (it's free).

The following form is missing validation attributes:
< form >
< div class= " container " >
< h1 > Register Here < /h1 >
< p > Please fill in the details to create an account with us. < /p >
< hr >
< label for= " ? " > < b > Enter Email < /b > < /label >
< input type= " ? " placeholder= " Enter Email " name= " ? " placeholder= " [email protected] " >
< label for= " ? " > < b > Password < /b > < /label >
< input type= " ? " placeholder= " Enter Password " name= " ? " >
< label for= " ? " > < b > Confirm Password < /b > < /label >
< input type= " ? " placeholder= " Confirm Password " name= " ? " >
< label for= " phone " > < b > Phone < /b > < /label >
< input type= " tel " id= " phone " name= " phone " placeholder= " 123-45-678 " >
< hr >
< p > By creating an account you agree to our < a href= " # " > Terms & Privacy < /a > . < /p >
< button type= " submit " class= " registerbtn " > < strong > Register < /strong > < /button >
< /div >
< /form >
You need to update the form to enforce the following requirements for visitors:
* All fields must be completed with valid information.
* The users should not be allowed to type passwords longer than 8 characters.
* Passwords must use only numbers and letters.
* Phone numbers and email addresses must follow the configuration of the placeholder text.
* The browser must display an error message that makes it clear what type of input change is needed.
Review the markup on the left.
Complete the sentences by selecting the correct option from each drop-down list.
Note: You will receive partial credit for each correct selection.

Explanation:
First drop-down: four
Second drop-down: maxlength
Third drop-down: email, password, and phone
The form contains four user-entry input elements: email, password, confirm password, and phone. Since the requirements state that all fields must be completed, the required attribute must be applied to all four inputs.
The password field must prevent entries longer than eight characters, so the correct length-control attribute is maxlength, not max; max applies to numeric/date-style value ranges, while maxlength limits character count in text-style inputs. The phone field also benefits from maxlength because its placeholder format has a fixed visible structure. Finally, completed pattern attributes are needed for email, password, and phone because each has a required format rule: the email must match the placeholder-style address format, the password must use only letters and numbers, and the phone number must follow the placeholder format such as 123-45-
678. The title attribute should accompany these patterns to produce meaningful browser validation messages.

The following output has more text than will fit in the element.

You need to apply CSS to contain the text inside the element ' s border without creating unneeded scrollbars or losing text. Which attribute setting should you use?

• A. overflow:auto;
• B. overflow:visible;
• C. overflow:scroll;
• D. overflow:hidden;

Explanation: Only visible for Lead2Passed members. You can sign-up / login (it's free).