WEB L7

Which syntax is used to change the text color of an element with id="title" in JavaScript?

• document.style("title").color = "red";

• document.getElementById("title").style.textColor = "red";

• document.getElementById("title").style.color = "red";

  
  

• document.style("title").color = "red";

What happens if

prompt("What is your name?")

is left empty?

• username is an empty string (" ")

• The page reloads

• JavaScript throws an error

let title = document.getElementById("title");

What will

title.innerHTML = "Hello " + username;

do?

• Create a new HTML element

• Update the HTML content of an element with id "title"

• Log a message to the console

• Display a prompt asking for the user's name

What is the purpose of addEventListener() in JavaScript?

• To execute a function when a specified event occurs

• To loop through an array

• To create a new HTML element

• To modify CSS styles dynamically

What is the purpose of media query in CSS?

• To create animation

• to apply styles based on the device characteristics

• to add java script to CSS

• to change HTML

Which device width range does the following media query cover?

@media (min-width: 400px) and (max-width: 768px)

• Less than 400px
  

• Greater than 768px

• Between 400px and 768px

• All screen sizes

Which of the following is a valid media query?

• @media screen-width: 768px

• @media (max-width = 768px)

• @media (max-width: 768px)

• media @ (min-width: 500px)

Which of the following is the correct way to save data in localStorage?

• localStorage.save("name", "Ahmed")

• localStorage.setItem("name", "Ahmed")

• localStorage.store("name", "Ahmed")

• localStorage.push("name", "Ahmed")

How can you retrieve a value from localStorage?

• localStorage.get("name")

• localStorage.readItem("name")

• localStorage.getItem("name")

• localStorage.fetch("name")

Which data types can be stored directly in localStorage?

• Only strings

• Strings and numbers

• Strings, arrays, and objects

• Any JavaScript type