block

// this is a block :){}

• why we need it ? so, we can group these statements in a place where js expects only single statements :)

if (true) true;
if (true) {  let a = 10;  console.log(a);}

{  var a = 10;  let b = 20;  const c = 30;  console.log(a);  console.log(b);  console.log(c);}console.log(a);console.log(b);console.log(c);