difference between "let" and "var"?
In simple words 'var' is function scoped and 'let' is block scopeddifference between "let" and "var"?
In simple words 'var' is function scoped and 'let' is block scopedwhat to use let vs var js
/* DIFFERENCE BETWEEN LET AND VAR */
//LET EXAMPLE
{
let a = 123;
};
console.log(a); // undefined
//VAR EXAMPLE
{
var a = 123;
};
console.log(a); // 123let and var difference
function run() {
var foo = "Foo";
let bar = "Bar";
console.log(foo, bar);
{
let baz = "Bazz";
console.log(baz);
}
console.log(baz); // ReferenceError
}
run();Copyright © 2021 Codeinu
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