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) }
What is a method in JavaScript?
A). A function stored as a property of an object
B). A variable declared within a function
C). A keyword used to define a function
D). A loop within a function
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) { }
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
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
What will be the output of the following code: function test() { return 'Hello'; } alert(test());?
A). undefined
B). test
C). Hello
D). error
Which of the following is an example of an arrow function?
A). function => { }
B). () => { }
C). arrow function() { }
D). => function() { }
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();
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() { };
How can you define a function as a property of an object?
A). object.function = function() { };
B). object = { function() { } };
C). object: function() { };
D). object = { func: function() { } };