Beijing table tennis training school

Beijing table tennis training school

Assessment

Interactive Video

1st - 3rd Grade

Hard

Created by

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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the primary role of 'this' in programming?

To import a module

To create a new function

To declare a variable

To refer to the current object

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In which context does 'this' refer to the global object?

Inside a method of an object

Inside a regular function in non-strict mode

Inside an arrow function

Inside a function in strict mode

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How does 'this' behave in an arrow function?

It refers to the global object

It retains the value of 'this' from the enclosing lexical context

It creates a new object

It refers to the object that called the function

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a common mistake when using 'this' in event handlers?

Assuming 'this' refers to the event target

Using 'this' to access global variables

Expecting 'this' to be undefined

Using 'this' to declare new variables

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which of the following is a method to explicitly set the value of 'this'?

Declaring a variable

Using a loop

Creating a new object

Using the 'bind' method