js variables
// 3 ways to create
var mrVariable = 'x'; // You can set it to to a string ( '' ) or no. ( 0 ). It
// is globally defined
let myVariaible2 = 'y'; // You can set it to string or no. let is block scoped
const myVariable = 'z'; // It is block scoped, can be a string or no. and can't
//be reassignedjs var
function x() {
y = 1; // Genera un ReferenceError in strict mode
var z = 2;
}
x();
console.log(y); // scrive "1" in console
console.log(z); // Genera un ReferenceError: z non è definita fuori dalla funzione xCopyright © 2021 Codeinu
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