Q
How do you define a default parameter in a function?

Answer & Solution

Answer: Option A
Solution:
Default parameters are defined using param = value in the function signature.
Related Questions on Average

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 the scope of a variable declared within a function?

A). Global

B). Local

C). Block

D). Script

What is the correct way to return an object from a function?

A). return object { };

B). return { };

C). return new Object { };

D). return object() { };

What is an anonymous function?

A). A function without a name

B). A function without parameters

C). A function without return value

D). A function without a body

How do you define a function with parameters in JavaScript?

A). function myFunction[] { }

B). function myFunction(parameters) { }

C). function myFunction{parameters}

D). function myFunction((parameters)) { }

Which keyword is used to return a value from a function?

A). return

B). give

C). send

D). output

How do you define a function in JavaScript?

A). function myFunction { }

B). function: myFunction() { }

C). function myFunction() { }

D). myFunction function() { }

What will be the output of the following code: function test() { return 'Hello'; } console.log(test());?

A). test

B). Hello

C). undefined

D). error

How do you handle the returned value of a function that returns an object?

A). var obj = myFunction(); obj.key;

B). var obj = myFunction().key;

C). var obj = myFunction.key();

D). var obj.key = myFunction();

Which of the following is a valid way to return multiple values from a function?

A). return a, b;

B). return [a, b];

C). return {a, b};

D). return (a, b);