Function Invocation and Function Return Mockest | JavaScript

1.

What is the correct syntax for invoking a function named myFunction?

A). call myFunction() B). myFunction() C). myFunction(call) D). invoke myFunction()

2.

How do you define a function in JavaScript?

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

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3.

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

A). return B). give C). send D). output

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4.

How do you immediately invoke a function expression (IIFE)?

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

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5.

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

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

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6.

How can you store the result of a function in a variable?

A). var result = myFunction; B). var result = myFunction(); C). var result = myFunction;() D). var result: myFunction()

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7.

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

A). Global B). Local C). Block D). Script

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8.

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)) { }

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9.

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);

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10.

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();

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Function Invocation and Function Return Mocktest

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