JavaScript Keywords Mockest | JavaScript

1.

Which keyword is used to declare variables in JavaScript?

A). var B). let C). const D). variable

2.

What is the purpose of the 'let' keyword in JavaScript?

A). To declare constants B). To declare block-scoped variables C). To declare functions D). To perform logical operations

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3.

Which keyword is used to declare constants in JavaScript?

A). const B). let C). var D). constant

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4.

What is the purpose of the 'if' keyword in JavaScript?

A). To perform conditional execution B). To declare functions C). To create loops D). To skip iterations in a loop

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5.

Which keyword is used to create a loop with multiple cases in JavaScript?

A). switch B). for C). while D). if

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6.

What does the 'break' keyword do in JavaScript?

A). Exits a loop or switch statement B). Continues to the next iteration in a loop C). Returns a value from a function D). Skips the current iteration in a loop

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7.

Which keyword is used to skip the current iteration in a loop?

A). continue B). break C). return D). exit

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8.

What does the 'return' keyword do in JavaScript?

A). Exits a loop or switch statement B). Continues to the next iteration in a loop C). Returns a value from a function D). Skips the current iteration in a loop

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9.

Which keyword is used to create a new instance of an object?

A). new B). instanceof C). this D). create

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10.

What does the 'this' keyword refer to in JavaScript?

A). The object on which a method is called B). The global object C). The parent function D). The current file

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