Coding Roboter to learn JavaScript

Basics

• Each command ends with a semicolon (;)
• Syntax is C-like, but without types
• One-line-comments with // COMMENT_TEXT
• Multi-line-comments with /* COMMENT_TEXT */

Variables

• Set variables: var NAME_OF_VARIABLE;
• Set variable in current block (function, if, else, while, etc.): let NAME_OF_VARIABLE;
• Change variables: NAME_OF_VARIABLE = CONTENT_OF_VARIABLE;

Control flow

• Simple check with if ( CONDITION ) { PROGRAM_CODE }
• CONDITION can be: NAME_OF_VARIABLE == CONTENT_OF_VARIABLE (there are two equal signs!)
• Simple loop: while ( CONDITION ) { PROGRAM_CODE }

Functions

• Define functions: function FUNCTION_NAME ( ARGUMENTS ) { PROGRAM_CODE }
• Execute functions: FUNCTION_NAME( ARGUMENTS )
• Arguments are only necessary when also defined in the function

moveForwards()

Moves the robot one unit forwards.

turnRight() and turnLeft()

These functions are for turning the roboter.