Sample Function Scope example for Medium Article

sample_js.js

function testFunction() { //Scope 1: Starts here. This scope is created by the Function block
    var a = 1;
    
    if(true) { //This block is not creating any new Scope
        var b = 2;

        console.log(a, b); //'a', 'b' both is accessible here
    }
    
    console.log(b); //Though 'b' defined inside the 'if' block, it's still accessible here
} //Scope 1: Ends here.