Week 1 Study

Question 1

The 6 primitive data types of javascript are

Accepted Answer

boolean, number, string, null, undefined, object/symbol

Answer

boolean, integer, float, string, null, undefined, object

Answer

boolean, integer, number, string, object, undefined

Question 2

<details> was added in html 5

Answer

true

Question 3

When an event happens on an element, it first runs the handlers on it, then on its parent, then all the way up on other ancestors.
This is called [blank_start]bubbling[blank_end].

Accepted Answer

bubbling

Question 4

[blank_start]Trickling[blank_end] is event propagation from a parent element down through its children.

Accepted Answer

Trickling

Question 5

A [blank_start]callback[blank_end] function is a function a passed to another function.

Accepted Answer

callback

Question 6

document.getElementById('button').addEventListener('click', () => {
     // do something
})
This is an example of a(n) [blank_start]event listener[blank_end].

Accepted Answer

event listener

Question 7

functions can be stored in a variable and then called using the variable.

Answer

true

Question 8

javascript functions can be hoisted.

Answer

true

Question 9

arrow functions have a this keyword

Answer

true

Question 10

Arrow functions are not hoisted.

Answer

true

Question 11

Use document.[blank_start]getElementById[blank_end] method to access a method by ID.

Accepted Answer

getElementById

Question 12

Use the [blank_start]innerHTML[blank_end] method to get the content of an element.

Accepted Answer

innerHTML

Question 13

Use document.[blank_start]getElementByTagName[blank_end] to find an element by tag name.

Accepted Answer

getElementByTagName

Question 14

Use document.[blank_start]getElementByClassname[blank_end] to get an element by class.

Accepted Answer

getElementByClassname

Question 15

Use element.[blank_start]attribute[blank_end] to add a new attribute to an element.

Accepted Answer

attribute

Question 16

Use element.[blank_start]style[blank_end].property to change the style of an element.

Accepted Answer

style

Question 17

Use document.[blank_start]createElement[blank_end] to create an HTML element.

Accepted Answer

createElement

Question 18

Use document.[blank_start]removeChild[blank_end] to remove an HTML element.

Accepted Answer

removeChild

Question 19

Use document.[blank_start]appendChild[blank_end] to add an HTML element.

Accepted Answer

appendChild

Question 20

Use document.getElementById(id).event to add an event handle to an element.

Answer

true

Question 21

Template literals:
     Offer a way to define [blank_start]multiline[blank_end] strings.
     All you to [blank_start]interpolate[blank_end] variables.

Accepted Answer

multiline

Accepted Answer

interpolate

Question 22

IIFE stands for [blank_start]immediately invoked function expression[blank_end].

Accepted Answer

immediately invoked function expression

Question 23

After assigning a function to a variable, the function can be using the following syntax:

variableName(args)

Answer

true

Week 1 Study

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