This is a playground to test JavaScript. It runs a completely standard copy of Node.js on a virtual server created just for you. Every one of npm’s 300,000+ packages are pre-installed, so try it out:
arrays = [1, 2, 3, 4, 5];
for (let val of arrays) {
console.log(val);
if (val === 3) {
break;
}
}
str = 'end2';