Functions JS fill in the blank

Question 1

A function in JavaScript is a block of code that is defined once and can be executed many times when it is ____ or ____.

Answer 1

invoked, called

Question 2

Functions in JavaScript can be categorized into several types such as named, anonymous, and ____ functions, as well as ____ functions.

Answer 2

recursive, IIFEs

Question 3

Closures are important in JavaScript because they establish context for code execution and are key to ____ programming and ____ functions.

Answer 3

asynchronous, generator

Question 4

In JavaScript, functions can be treated as values and can be passed to other functions or ____ from other functions, demonstrating their ____ nature.

Answer 4

returned, first-class

Question 5

To change the value of the ‘this’ keyword in JavaScript, you can use methods like apply, call, and ____. These methods are essential for ____ functions.

Answer 5

bind, higher order

Question 6

When defining a function in JavaScript, it can be done as a declaration or an ____, and it is invoked using ____.

Answer 6

expression, parentheses

Question 7

Higher order functions in JavaScript can receive functions as arguments or ____ functions, showcasing their flexibility and ____ capabilities.

Answer 7

return, functional

Question 8

Generator functions and iterators in JavaScript are used for ____ over values, making them essential for ____ programming.

Answer 8

iterating, asynchronous

Question 9

The main types of functions in JavaScript include named, anonymous, recursive, inner, outer, and ____. Each serves a different ____ in programming.

Answer 9

IIFEs, purpose

Question 10

In JavaScript, a function is defined using the ____ keyword followed by the ____ name.

Answer 10

function, function

Question 11

The executable code block of a function is contained within ____ braces and may return a value using the ____ keyword.

Answer 11

curly, return

Question 12

To invoke a function in JavaScript, you must use ____ after the function name and can pass values by including them in the ____ .

Answer 12

parentheses, parentheses

Question 13

Functions in JavaScript can be treated as ____ because they can be passed around like ____ values.

Answer 13

values, primitive

Question 14

When defining a function, the function name is followed by parentheses which can include ____ to be passed into the function.

Answer 14

arguments

Question 15

The ‘sum’ function takes two parameters, ____ and ____, and returns their ____ .

Answer 15

num1, num2, sum

Question 16

To change the context of a function, you can use methods like ____, ____, or ____ .

Answer 16

call, apply, bind

Question 17

In JavaScript, the most common way to define a function is through a function ____ .

Answer 17

declaration

Question 18

The return value of a function can be captured in a variable by assigning it to a ____ .

Answer 18

let, const, var

Question 19

The output of the ‘sum’ function when called with 20 and 30 is ____ .

Answer 19

50

Question 20

A function can be ____ to a variable similar to a ____ value.

Answer 20

assigned, primitive

Question 21

A function can be stored in an ____ similar to a ____ value.

Answer 21

array, primitive

Question 22

A function can be passed to another function as an ____ and may also be ____ from a function.

Answer 22

argument, returned

Question 23

In JavaScript, functions are treated like any other ____ because they are first class ____.

Answer 23

value, functions

Question 24

A named function is created by providing a name after the function ____ keyword.

Answer 24

declaration, function

Question 25

An anonymous function is defined inside a larger ____ and may not have a ____ name.

Answer 25

expression, specific

Question 26

A recursive function calls itself as a part of the executing ____ code.

Answer 26

block, function

Question 27

In the example, the function 'sum' is invoked by getting the ____ element in the array.

Answer 27

third

Question 28

The output of the function 'sum' when called with 20 and 30 is ____ .

Answer 28

50

Question 29

Different types of functions in JavaScript depend on how they are ____ .

Answer 29

used, defined

Question 30

In JavaScript, an ____ function is defined within the code block of another function, while an ____ function is the outer function.

Answer 30

inner, outer

Question 31

A function that is invoked at the same time it is defined is called an ____ (pronounced as 'iffy'), while a function that is assigned to a variable is known as a ____ function.

Answer 31

IIFE, function expression

Question 32

The 'fib' function in the example is an example of a ____ function, while the function defined as 'num3' is an ____ function.

Answer 32

outer, anonymous

Question 33

In the provided example, the greeting is displayed after a delay of ____ milliseconds, and it uses a ____ function to update the HTML content.

Answer 33

1000, setTimeout

Question 34

A function expression is similar to a function declaration, but it is used to define a function as part of an ____ rather than a standalone statement.

Answer 34

expression

Question 35

The 'greeting' function takes a parameter named ____, and it uses a template literal to create a greeting message that includes this ____.

Answer 35

name, name

Question 36

In JavaScript, functions can be ____ which means one function can be defined inside another function, allowing for more complex behavior.

Answer 36

nested

Question 37

The output of the 'fib' function when called with arguments 0 and 1 is an array containing the values ____.

Answer 37

0, 1, 1

Question 38

In recursion, a function calls itself to solve a problem, and it requires a specific ____ to avoid infinite loops.

Answer 38

exit condition, base case

Question 39

The Fibonacci sequence starts with 0 and 1, and each number is the sum of the previous ____ numbers.

Answer 39

two, numbers

Question 40

An infinite recursion occurs when a recursive function lacks an ____ condition, leading to an infinite loop.

Answer 40

exit, base

Question 41

Arrow functions provide a more ____ syntax compared to traditional function expressions in JavaScript.

Answer 41

compact, concise

Question 42

In the Fibonacci function, if the sequence length is greater than or equal to the specified length, it will ____ the sequence.

Answer 42

return, output

Question 43

The error thrown by JavaScript when maximum call stack size is exceeded is called a ____ error.

Answer 43

RangeError, stack overflow

Question 44

To compute the Fibonacci sequence, the function uses the last two numbers in the sequence to calculate the ____ number.

Answer 44

next, subsequent

Question 45

The function 'multiply' demonstrates an infinite recursion by calling itself without a proper ____ condition.

Answer 45

exit, termination

Question 46

In the example of infinite recursion, the function 'multiply' uses the method ____ to remove the last element from the array.

Answer 46

pop, shift

Question 47

In JavaScript, when a function has a single parameter, the parentheses can be ____ and the return statement can be ____ if the body has only one statement.

Answer 47

removed, implied

Question 48

The arrow function version of a function can omit the ____ if it has a single statement, and the ____ keyword can also be omitted.

Answer 48

braces, return

Question 49

In traditional functions, the this keyword is set to the object that ____ the function, while in arrow functions, it is determined by the ____ of the function call.

Answer 49

invoked, context

Question 50

When defining an arrow function without parameters, you must use an empty set of ____ to indicate that there are no parameters.

Answer 50

parentheses

Question 51

The arrow function version of the greeting function can be written as name => console.log(`Good Morning ____ !`);, where ____ is the parameter name.

Answer 51

{name}, name

Question 52

In the arrow function version of the sum function, the syntax is num1, num2 => num1 ____ num2; where the operator is ____ .

Answer 52

+ , +

Question 53

In the random function example, if the generated number is greater than 5, the return value is ____; otherwise, it returns the ____ .

Answer 53

0, num

Question 54

The arrow function version of the random function uses an implicit return when there is a single ____ statement.

Answer 54

expression

Question 55

In JavaScript, the this keyword in arrow functions does not default to the ____ object, unlike traditional functions.

Answer 55

global

Question 56

In JavaScript, if 'this' is not set by the call, it defaults to the _____ object and can refer to _____ in a method.

Answer 56

global, the object itself

Question 57

When calling 'sayHeight' from the person object, 'this' refers to the _____, while calling 'sayWeight' results in 'this' being the _____ object.

Answer 57

person, global

Question 58

A higher-order function can either receive a function as an _____ or return a function as a _____ value.

Answer 58

argument, return

Question 59

The 'map' method of the Array object is an example of a higher-order function because it accepts a _____ as an argument and returns a new _____.

Answer 59

function, array

Question 60

In the example of 'createMultiplyFunction', it returns a function that multiplies its input by a given _____, demonstrating the concept of _____ functions.

Answer 60

number, higher-order

Question 61

A function passed into another function is known as a _____ function, which is essential for _____ coding in JavaScript.

Answer 61

callback, asynchronous

Question 62

In the event listener example, the 'showDate' function is executed when the button is clicked, allowing the program to continue running without _____ at that point.

Answer 62

stopping

Question 63

When 'showDate' is called, it logs the values of '_____ ' and '_____ ' to the console, demonstrating the use of event listeners.

Answer 63

intro, date

Question 64

The output of 'multiplyBy10(5)' is _____, showing how a function can be returned and used later in JavaScript.

Answer 64

50

Question 65

In the context of asynchronous functions, the 'addEventListener' method allows for _____ execution of code when an event occurs.

Answer 65

non-blocking

Question 66

In JavaScript, synchronous code runs in a ____ manner, while asynchronous code operates ____ the normal sequence of execution.

Answer 66

synchronous, outside

Question 67

Function declarations in JavaScript are ____ which means they can be invoked before they are ____ in the code.

Answer 67

hoisted, defined

Question 68

Closure in JavaScript allows a function to access its ____ scope even after the function that created the parent scope has ____ execution.

Answer 68

parent, completed

Question 69

An example of asynchronous code is when an event handler is set up for a button, but it is not executed until the button is ____ and ____ is triggered.

Answer 69

clicked, the event

Question 70

When a function expression is invoked before it is defined, it results in a ____ error, while a function declaration does not.

Answer 70

ReferenceError

Question 71

In the example of closure, the 'createScoreFunction' returns a function that adds to the ____ array and then prints the number of ____.

Answer 71

scores, values

Question 72

JavaScript code runs to completion without stopping in a ____ manner, while asynchronous code allows for ____ operations.

Answer 72

synchronous, non-blocking

Question 73

The main difference between function declarations and function expressions is that function declarations are ____ and can be invoked at any time.

Answer 73

hoisted

Question 74

The apply() method invokes a function and passes in the arguments as a _____, while the call() method passes them as a _____.

Answer 74

array, comma separated list

Question 75

In JavaScript, the bind() method returns a new function and assigns the object passed in to the keyword 'this', allowing for _____ and _____ of arguments.

Answer 75

binding, passing

Question 76

When using the call() method, the first argument is the object to be assigned to 'this', and the second argument is the _____, which is passed as a _____.

Answer 76

function, comma separated list

Question 77

In the context of the objGreet object, the morningGreet function uses the keyword 'this' to access the user's _____, while the eveningGreet function does the same for the _____ parameter.

Answer 77

firstName, punct

Question 78

The createScoreFunction returns a function that can access the scores array through _____, allowing it to modify the _____ of scores.

Answer 78

closure, length

Question 79

The output of addScore(70) shows that the total scores is now _____, while addScore(90) increases it to _____.

Answer 79

1, 2

Question 80

In the example provided, objGreet.morningGreet.call(user1, '!') demonstrates the use of _____ to invoke a function with a specific context.

Answer 80

call

Question 81

The bind() method is unique because it returns a new function that can be invoked later, allowing for the _____ of parameters to be set in advance.

Answer 81

binding

Question 82

The generator function is defined with an asterisk (*) and is used to create a _____ that can yield multiple values over time.

Answer 82

generator

Question 83

The eveningGreet function in objGreet uses the keyword 'this' to refer to the _____ of the user object passed in.

Answer 83

firstName

Question 84

A generator function is defined with an asterisk (*) and can be used with the ____ method to iterate over ____ values.

Answer 84

next(), values

Question 85

The yield keyword is used in a generator function to ____ the function and return the ____ in the current iteration.

Answer 85

pause, value

Question 86

In the fibonacci sequence generator, the first two numbers are ____ and ____ before generating the next numbers.

Answer 86

0, 1

Question 87

The next() method returns an object with properties 'value' and ____ which indicates if there are more values to return.

Answer 87

done

Question 88

When there are no more values left to return, the 'done' property becomes ____ and the value returned is ____ .

Answer 88

true, undefined

Question 89

An iterator is a special object that implements a ____ sequence for a collection of ____ .

Answer 89

one-at-a-time, items

Question 90

In the progressive factorial example, each time next() is used, a new ____ and its ____ are displayed.

Answer 90

number, factorial

Question 91

The fibonacci sequence generator produces a sequence of ____ numbers, with each new number being added ____ at a time.

Answer 91

100, one

Question 92

The output of the fibonacci sequence generator is an array that contains the ____ of the sequence generated so far.

Answer 92

values

Question 93

The rhymeGenerator function yields several lines including 'One, two, three, four, five,' and '____ I caught a fish alive.'

Answer 93

Once