JavaScript Function Syntax Mockest | JavaScript

11.

How do you call a method named greet that belongs to an object person?

A). person(greet); B). person.greet(); C). greet.person(); D). call person.greet();

12.

Which statement correctly defines a function named sum that returns the sum of two parameters a and b?

A). function sum(a, b) { return a + b; } B). function sum(a, b) { a + b; } C). function sum(a, b) return a + b; D). function sum(a, b) { return (a + b) }

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13.

How do you create a function expression in JavaScript?

A). var myFunction = function() { }; B). function myFunction = { }; C). function = myFunction() { }; D). var function() = myFunction { };

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14.

What is the difference between function declarations and function expressions?

A). Function declarations are hoisted, function expressions are not B). Function expressions are hoisted, function declarations are not C). Function declarations cannot take parameters D). Function expressions cannot return values

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15.

How do you define a default parameter in a function?

A). function myFunction(param = 10) { } B). function myFunction(param == 10) { } C). function myFunction(param := 10) { } D). function myFunction(param : 10) { }

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16.

What will be the output of the following code: function test() { return "Hello"; } alert(test());?

A). undefined B). test C). Hello D). error

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17.

How can you assign a function to a variable?

A). var myFunc = function() { }; B). var myFunc = function { }; C). var myFunc function() { }; D). var function myFunc() { };

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18.

Which of the following is true about functions in JavaScript?

A). Functions cannot be nested B). Functions can only have one parameter C). Functions can be assigned to variables D). Functions cannot return values

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19.

What is the scope of a variable declared inside a function?

A). Global B). Local to the function C). Local to the script D). It depends on the variable type

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20.

How do you define an Immediately Invoked Function Expression (IIFE)?

A). function() { }(); B). (function() { })(); C). function() { }(); D). function() ( ) { }

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