JavaScript Programming Test

Exam Type: JavaScript Programming MCQ Skill Test
Questions Type: Multiple Choice Questions
Total Questions: 32
Time Limit: 30 Minutes
Last Update June, 2025

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JavaScript Programming Quiz

Question 1 of 32
30:00

Which of the following represents when a String object splits a String object into an array of strings by separating the string into substrings?

do while (a < b) runs

How can you get the type of the variable?

Which of the following are the valid JavaScript codes to obtain the number of milliseconds since the epoch?

Note: Select more than 1 option as correct answer

When toggling a variable, its cycle must be 0 and 1. When the variable's active value is 0, the next value should be 1, and when the variable's active value is 1, the next value should be 0. Considering the scenario above, which of the following is correct?

Which of the following is the correct way to stop setInterval() from calling a function in JavaScript?

What kind of Typed Arrays representation of the pixels does Canvas ImageData return when you call ImageData.data?

What does a "for...in" loop do?

Which method is used to evaluate a string of Java Script code in the context of the specified object?

What are the Behavioral patterns as follows?

Note: Select more than 1 option as correct answer

Which of the following determines whether cookies are enabled in a browser or not?

What does ~ mean in bitwise operation?

What are valid states of the created Promise?

Note: Select more than 1 option as correct answer

What is true about strict mode?

Note: Select more than 1 option as correct answer

What is the super function in the class context?

How many yield keywords can be used in function* functions?

What is JavaScript?

What is the Promise?

The Promise is created. When will it resolve?

Select the existing event handler for DOM elements.

Which of the following is not a mouse event?

What is the event that fires when the form element textarea loses the focus?

What is the correct regular expression to replace Mango with Apple in a string: var str = "Eat Mango!";

Which JavaScript class represents regular expressions?

Arrow function expression has a shorter syntax than a function expression and does not bind its own as follow?

What command skips the rest of a case statement?

What will be the value of a? let a = -1 ? 'foo' ? null : -1 : 1;

How do you remove property a from this object? let a = {a:1, b:2};

Which of the following popup boxes have support in JavaScript? (Choose all that apply.)

Which of the following determines the type of a given object?

Which types of image maps can be used with JavaScript?

Which of the following is used in JavaScript to insert special characters?

JavaScript Programming Test Explained

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