Blocks language
Blocks snap into each other to define the program that your Adafruit Circuit Playground Express 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);