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Intro JS Glossary

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Define a Function JavaScript

Defining a function means to teach the computer a new command and explain what it should do when receiving that command.

Define a Function

Call a Function JavaScript

Calling a function actually gives the command, so the computer will run the code for that function.

Call a Function

Debugging General

Debugging is fixing a problem in your code.

Debugging

Constant JavaScript

A variable in a program that has a value that does not change.

Constant

Canvas JavaScript

The screen in which our graphics programs are drawn.

Canvas

Coordinate system JavaScript

A coordinate system uses numbers as coordinates to place objects in a geometric space.

coordinate system

Radius JavaScript

The length between the center and edge of a circle

If Statement General

An if statement lets you ask a question to the program and only run code if the answer is true.

If Statement

If Else Statement General

Control structure that lets us run either one section of code or another depending on a test.

If Else Statement

Conditional Statement General

A statement that evaluates to true or false.

If Statement General

An if statement lets you ask a question to the program and only run code if the answer is true.

While Loop General

Lets us repeat code as long as something is true.

While Loop

For Loop JavaScript

A for loop lets us repeat code a **fixed number of times**.

For Loop

Boolean JavaScript

A boolean is a true or false value.

Boolean

Front-end General

Client devices and applications are often referred to as the “front end” - meaning what the user actually sees.

Back-end General

Server devices and applications are often referred to as the “back end” - meaning the user doesn’t actually SEE what is happening; it’s hidden from their view and they just see the results on their end.

interpreted language General

Translates and executes program code line by line into machine code.

compiled language General

Translates, or “compiles” the entire code into machine code and then runs the program, or sets aside to run later.

Argument JavaScript

A variable passed as a value to a function

argument

Parameter JavaScript

A variable passed in from outside the function

parameter

Return JavaScript

Exit a function and return a value

Return

Return Value JavaScript

The value returned from a function when the function is called.

Default Value JavaScript

The default value given to a parameter when it is initialized if no value is passed in.

Variable General

A symbol or container that holds a value.

variable

Scope General

In what part of the program the variable exits

Scope

Global variable JavaScript

A variable that can be used throughout a program, in every scope

Global variable

Local variable General

A variable that is restricted to use in a certain scope of a program

Local variable

Timer JavaScript

Timers are used to used perform repeated action in a program

Timer

Callback Function JavaScript

A function passed as a parameter to another function in order to be called later.

Event JavaScript

An event is an action (such as clicking the mouse or pressing a key on the keyboard) that a program detects and uses as input.

Event

Mouse Event General

A mouse event is when the user does something with the mouse, like clicking or moving.

Key Event JavaScript

A key event is when the user does presses any of the keyboard keys.

Internet General

A philosophy of making information and knowledge open and accessible to all people. A network of networks built on open, agreed upon protocols.

Protocol General

A widely agreed upon set of rules that standardize communication between machines.

Citizen Science General

Science that harnesses the power of many individuals to solve hard, complex problems.

Data General

Information (numbers, words, measurements, observations, etc) that is in a computer-readable form.

Number System General

Defines how we represent numbers. Which digits we can use, and what each position (place ) in a number means.

Decimal Number System General

The number system we use in out everyday lives. It has 10 digits, 0-9.

Binary Number System General

Number system that has 2 digits, 0 and 1. This is how computers represent numbers at the base level.

Hexadecimal Number System General

Number system that has 16 digits 1 - 9 and A - F.

Number System General

A number system defines how we represent numbers. It defines which digits we can use, and what value each position (place value) in a number has.

Binary General

The binary number system is the Base 2 Number System. It is a number system that only uses 2 digits (0 and 1).

Bit General

Bit means "binary digit". A bit is a single digit in a binary number. A bit can either be 0 or 1.

ASCII General

ASCII is the standard protocol for encoding text information as bits. The ASCII table assigns a unique binary number to every text character.

RGB Encoding General

The RGB encoding scheme allows us to encode colors such as numeric data. It defines the amount of Red, Green, and Blue light in a pixel.

Computer General

A person or device that makes calculations, stores data, and executes instructions according to a program.

Computer

Hardware General

The physical components of a computer

Software General

Programs that can be run on a computer

software license General

Legally binding guidelines for use and distribution of software.

open source software General

Software that is available for anyone to access and modify.

proprietary software General

Software that is owned by an individual or company.

application architecture model General

Refers to the design of the essential parts of an application and how they are connected to each other.

locally installed software General

Software installation that is performed on your local computer.

local network hosted General

Software installation that is performed on a local area network (LAN).

cloud hosted General

Software that is installed, hosted and accessed entirely from a remote server or location.

Data privacy General

how company's use your data

Data security General

protecting your data online

https General

secure data transfer protocol when on the internet

Privacy Policy General

Legal document outlining how a company can collect and use your data

Digital Footprint General

The information about a particular person that exists on the Internet as a result of their online activity

Cyberbullying General

the use of electronic communication to bully a person

Copyright General

A law that grants the creator of an original work exclusive rights to its use, distribution, and sale

Public domain General

Objects in the public domain are not subject to copyright laws, and thus may be freely used by the general public.

Data Visualization General

Using charts, graphs, or images to visualize complex data.

Array JavaScript

Also called a list. A data structure that holds a collection of values in a particular order

List Array

Array Index Java

The position of an element in an array. The first element is at index 0, the second element is at index 1, and so on.

Push JavaScript

To add an item to a list or array

Push

Pop JavaScript

To remove the item in the last position from an array

Pop

Looping Through Arrays JavaScript

Looping through an array is the process to loop through an array and access each of the elements. Caution must be taken to avoid looping beyond the valid index values.

Array Methods General

Built-in functions that perform various operations on arrays, such as searching, iterating, modifying, and accessing elements.