APCSP.CodeHS with JS.Unit 5-Functions and Parameters v2

Define a function

Teach the computer a new command and explain what it should do when receiving that command. Sets the program up for being able to call the function and have it perform the desired task.

Call a function

Gives the command, so the computer will run the code for that function. Like phoning a friend for help.

A "function" is a way to: ___________

teach karel a new "word" or command

Parameter

Variable passed in from outside function

Procedural Abstraction

Provides name for process and allows procedure to be used only knowing what it does, not necessarily how it does

Modularity

Subdivision of a computer program into separate subprograms

Function body

The part of a function that contains the commands

Writing a function with parameters is like: _________

making a recipe that you can reuse

-- or --

having a friend who can help you with things

When a procedure or function has a "return" it will:

Exit the function and return a value to the main program

Scope

for variables, scope defines the part(s) of the program for which it is valid; e.g., a global variable is a valid variable anywhere in the program

A "Local Variable" is:

A variable that is restricted to use in a certain scope of a program, such as within a procedure

Runtime Error

Program runs, but crashes when running

Syntax Error

Program doesn't run at all

Logic Error

Program runs, but doesn't do what it is supposed to do.

"API" means:

Application Programming Interface

Standard Library

Baseline, plain version of programming language.

APIs makes it easier to

develop a program by reusing existing code

Karel is an API that is _____

built in JavaScript to make it easier to build cool programs quicker

Documentation

Provides information to show programmers how to use functions and code libraries

Flow Chart

A simple diagram with symbols showing the "flow" of a process

Comments

An annotation in the code of a computer program to help humans understand what the code is doing

Boolean variable

A variable to represent true or false.

Indefinite loop

A looping structure that is not based on a fixed number of repetitions

Definite loop

Executes a loop for a predetermined set of number of times

Moore's law

Developed by Intel's Gordon Moore, who accurately predicted that the number of transistors that could fit on a chip would roughly double about every 18 months. This law has helped innovators predict and develop technology efficiently for the past 50 years.

"Logic Gate" within a CPU (processor)

A hardware abstraction that is modeled by a Boolean function

Declaring Variables

Creating variables in a programming language

String

A series of characters at any length

Integer

A "round" number (no decimals)

Placeholder

symbol or text that temporarily holds the place for a value that will be assigned later

CR

Carriage Return

LF

Line Feed

println

Javascript function that prints out a line to the user