JavaScript Functions Mockest | JavaScript

1.

What is a complex data type in programming?

A). Primitive data type B). Data type composed of multiple elements C). Single integer value D). Single character value

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2.

Which of the following is a common example of a complex data type?

A). String B). Integer C). Array D). Boolean

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3.

In JavaScript, how do you define an array?

A). let arr = "value1, value2" B). let arr = [value1, value2] C). let arr = {value1, value2} D). let arr = (value1, value2)

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4.

What is an object in programming?

A). A data structure with a fixed sequence of elements B). A primitive data type C). A data structure that stores key-value pairs D). A single numerical value

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5.

How do you access the value of a key in a JavaScript object?

A). object(key) B). object.key C). object[key] D). Both b and c

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6.

Which of the following is a feature of complex data types?

A). They can hold multiple values B). They can be manipulated as a single entity C). They can be composed of different data types D). All of the above

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7.

What is the purpose of a JSON object?

A). To store a single value B). To define a variable C). To represent data as a string D). To store data in a structured, key-value pair format

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8.

How do you parse a JSON string in JavaScript?

A). JSON.convert() B). JSON.toObject() C). JSON.parse() D). JSON.stringify()

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9.

Which method converts a JavaScript object into a JSON string?

A). JSON.convert() B). JSON.toString() C). JSON.stringify() D). JSON.parse()

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10.

What is a multidimensional array?

A). An array with a single dimension B). An array containing other arrays C). An array with only string values D). An array with a fixed size

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JavaScript Functions Mocktest

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