Blocks language
Blocks snap into each other to define the program that your LEGO® MINDSTORMS® Education EV3 will run. Blocks can be event (buttons, shake, …) or need to be snapped into an event to run. The on-start event runs first.
Blocks
for (let i = 0;i<5;++i) {} if (true){} let x = 0; Built-in objects
Math.randomRange(0,5); "".compare(""); [0].push(0);