What is the difference between var and let in javascript
In Javascript, I see many codes were variables are declared using var and some using let. I just want to know whats the difference between let and var. And which one is better?
var has global scope whereas let has blocked scope. So a variable declared with let inside an if statement will not be accessible outside. Whereas if same variable is declared using var inside an if statement, it will be accessible.
If(true){
let z="hello";
}
console.log(z); // errorPublished on 4 JUNE 2022 at 14:52
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