JavaScript (Week 1)

Question 1

Data Type

Answer 1

A kind of data, defined by the values it can hold and the operations that can be done to it

Question 2

Primitive type

Answer 2

A kind of data type. Primitives in JavaScript are: string, number, boolean, null, undefined and symbol

Question 3

Variable

Answer 3

A container for a value. The main building block for all programming

Question 4

Declare

Answer 4

Creating a new variable (distinct from assignment)

Question 5

Assignment

Answer 5

Assigning a value to a variable

Question 6

Concatenation

Answer 6

The binding of multiple strings together using the + string operator

Question 7

Interpolation

Answer 7

The process of injecting a variable directly into a string

Question 8

Template literal

Answer 8

Template literals are string literals that provide an easy way to interpolate a variable or expression into a string

Question 9

Operator

Answer 9

Symbols that are used to assign, compare and perform operations

Question 10

Conditional

Answer 10

An expression that evaluates true or false, or a control flow statement that executes code

Question 11

Function

Answer 11

A predefined and reusable group of behaviors

Question 12

Call / Invoke

Answer 12

Running a function

Question 13

Parameters

Answer 13

The variables declared in a function definition

Question 14

Arguments

Answer 14

The variables passed to a function when it’s called/invoked

Question 15

HTML element

Answer 15

A building block that makes up the structure of a web page

Question 16

CSS Selector

Answer 16

A way to identify a set of elements, typically using a tag, class or id

Question 17

Interface

Answer 17

A shared boundary across which two separate components exchange information

Question 18

DOM

Answer 18

Document Object Model, the JavaScript interface used to interact with HTML

Question 19

Event

Answer 19

Any event which takes place in the DOM, these can be generated by users or the browser

Question 20

Event Handler

Answer 20

A function that will run when a specific event occurs

Question 21

Method

Answer 21

A type of function for a specific object