JSFiddle - React, Tailwind, and code Playground
JavaScript
var a = 1;
function f(a){
console.log("in the function a: "+ a);
if(a==11){
let b = 2;
console.log("block scope b is: "+b);
}
//console.log("outside the block b is: "+b);
}
f(11);
console.log("global a is "+a);