Coding for dumME

Created by Baruš Jeřábková

Notes from the Grasshopper app Notes from Hello Ruby book for kids Looking for answers Embracing "shit happens" reality Just trying to get it....

#beginner, #beginners, #code, #coding, #dummies, #grasshopper, #javascript, #js, #programming, #self-taught

getting a specific iten from an array - changing the index

Array [ ]

list of items

The item can be different data types: numbers, strings, oter arrays

An array inside another array is called an array nesting

function picking up from an array

Variable var

They allow you to reference the same piece of information multiple times. 

In JS can be defined using var then giving the variable a unique name

Function ( )

tells a computer to do a certain thing

functions can take arguments to give the computer extra information

example:

in Grasshopper - drawBox ()

Argument

in Grasshopper drawBox(red) - red is an argument, tells the computer to draw a red box

String ' '

Letters, words, and sentences are called strings in coding. 

Quotation marks are used to show the start and the end of a string.

for example 'hello world' is a string 

console.log('I will be able to code for real!')

Pick random color - two functions

value

storing data and changing the value =

new line

if statement - if ( ) { }

If statements allow you t orun a specific section of code when a test is true.

The code inside ( ) is the test

 If the test is true then the code inside the block { } runs. If the test isn't true, the code in the block doesn't run.

equality operator ===

inequality operator !==