var or const in javascript
// var declares a variable, meaning its value will vary.
// const declares a constant, meaning its value will remain
// consistant and not change.
// If your variable changes throughout the program or website,
// declare it using a var statement.
// Otherwise, if its value does not change, declare it using
// a const statement.
const myConst='A const does not change.';
var myVar='A var does change.';
var myVar=2;const let var
var greeter;
console.log(greeter); // greeter is undefined
greeter = "say hello"const let var
var makes real ice cubes that rattle around in New York
let makes real ice cubes in Manhatten
const is like let but the ice cubes never change because they are plasticvar let const javascript
// `let` vs `var` vs `const` in 'javascript'
"let" allows you to declare local variable whose scope
is limited to the block statement.
"var" allows you to declare a variable globally or locally
to an entire function.
"Const" just like let, are block-scoped.
It's value can't be reassigned and it can't be redeclared.Copyright © 2021 Codeinu
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