js .length

JavaScript
var numbers = [1, 2, 3, 4, 5];
var length = numbers.length;
for (var i = 0; i < length; i++) {
  numbers[i] *= 2;
}
// numbers is now [2, 4, 6, 8, 10]
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 bugconst clothing = ['shoes', 'shirts', 'socks', 'sweaters'];

console.log(clothing.length);
// expected output: 4str.lengthvar x = 'Mozilla';
var empty = '';

console.log('Mozilla is ' + x.length + ' code units long');
/* "Mozilla è lungo 7 unità di codice" */

console.log('La stringa vuota ha una lunghezza di
 ' + empty.length);
/* "La stringa vuota ha una lunghezza di 0" */
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