Variable Scope in JavaScript

Learn the nuances of variable scoping in JavaScript by looking at various examples using 'var', 'let', and other techniques.

[qazimrama]

Your presentation is awesome and slides also are awesome

[rahenrique]

The "variable hoisting" is something new for me. Thanks for the awesome explanation!

[CoryTheSimmons]

I was just starting to drift from the "variables at the top" best practice because I didn't really understand hoisting. Now I understand it and why the variables at the top thing is a best practice. Thanks Kirupa. Glad to see you're making high quality tutorials (I used to be on your forums back when @pasql was still DarkMotion -- several years ago). Happy I stumbled upon this channel and your site again!

[LightWillSine]

You are really good. You deserve higher views.

[kirupa]

Yeah, it's one of those things that you learn the hard way when you are scratching your head over why your code isn't working haha.

[shabba]

I should have never watched this while stoned.

[intuneknight]

all the explication is fine but how do I expose the variable after being use to the global holding the new value ?

[parvezmd]

var days=['jan', 'feb', 'mar']
for(var i=0;i<days.length;i++)
{
const ele=days[i];/*how it is executed I am confused about constant bcoZ const cannot be reassigned */
console.log(ele);
}
thank u sir

[sudhiraayyagary]

Looks like you are reading from the monitor but its good tutorial