javascript length

let string="Hi grepper";
let length = string.length;

cadena_primitiva = String("barra"); // crea una Cadena primitiva
cadena_primitiva = "barra"; // crea una Cadena primitiva
cadena_primitiva.length; // 5

var myString = "string test";
var stringLength = myString.length;

console.log(stringLength); // Will return 11 because myString 
// 							  is 11 characters long...

var colors = ["Red", "Orange", "Blue", "Green"];
var colorsLength=colors.length;//4 is colors array length 

var str = "bug";
var strLength=str.length;//3 is the number of characters in bug

str.length

array.length

 var str = "Hello World!";
var n = str.length;