Learn JavaScript from Scratch JavaScript for Everyone - Objects with Functions

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Information Technology (IT), Architecture
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University
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Hard
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the primary benefit of using objects in JavaScript?
To reduce the number of lines of code
To make the code more complex
To avoid variable conflicts and organize data
To increase the speed of the code
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you add a new property to an existing object in JavaScript?
By re-declaring the object
By using the 'new' keyword
By using the 'add' keyword
By assigning a value to a new key
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens if you try to change a constant object in JavaScript?
The object remains unchanged
The object is re-created
You can add new properties
It throws an error
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you define a function within an object in JavaScript?
By declaring it as a global function
By using the 'new Function' syntax
By assigning a function to a key within the object
By using the 'function' keyword outside the object
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a default parameter in a function?
A parameter that must be provided
A parameter that cannot be changed
A parameter that is optional and has a default value
A parameter that is always a string
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the advantage of using object literals in JavaScript?
They make the code slower
They make the code more concise
They make the code more complex
They make the code longer
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How can you define a function in an object literal without using the 'function' keyword?
By using the 'func' keyword
By using the 'def' keyword
By using shorthand syntax
By using arrow functions
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