JAVASCRIPT

How to Loop Through an Array with a for…in Loop in JavaScript

const scores = [22, 54, 76, 92, 43, 33];

for (i in scores) {
    console.log(scores[i]);
}

// will return
// 22
// 54
// 76
// 92
// 43
// 33

Iterate Through an Array with a For Loop

var arr = [10, 9, 8, 7, 6];
for (var i = 0; i < arr.length; i++) {
   console.log(arr[i]);
}

how to loop through an array

int[] numbers = {1,2,3,4,5};
for (int i = 0; i < numbers.length; i++) {
	System.out.println(i);
}

create a loop that runs through each item in an array

Create a loop that runs through each item in the "fruits" array.

var fruits = ['Apple', 'Banana', 'Orange']

for(x of fruits){
	console.log(x);
}

iterate through an array

var arr = [1,2,3,4,5,6,7,8];

// Uses the usual "for" loop to iterate
for(var i= 0, l = arr.length; i< l; i++){
	console.log(arr[i]);
}

console.log("========================");

//Uses forEach to iterate
arr.forEach(function(item,index){
	console.log(item);
});

Loop through array

String[] cars = {"Volvo", "BMW", "Ford", "Mazda"};
System.out.println(cars[0]);

// Change elements in array
cars[0] = "Opel";
System.out.println(cars[0]);

// Length of array
System.out.println(cars.length);

// Loop through array
for (int i = 0; i < cars.length; i++) {
  System.out.println(cars[i]);
}

Loop through an array

String[] fruits = {"apple", "orange", "pear"};
for(int i=0; i<fruits.length; i++)
{
System.out.println(fruits[i]);

}

loop through an array

String[] myStringArray = {"Hello", "World"};
for (String s : myStringArray) {
    // Do something
}

Iterating or loop through the elements of an array is with a for loop (for):

var keys = Object.keys(o);   // Get an array of property names for object o
var values = []              // Store matching property values in this array
for(var i = 0; i < keys.length; i++) {  // For each index in the array
    var key = keys[i];                  // Get the key at that index
    values[i] = o[key];                 // Store the value in the values array
}

How to Loop Through an Array with a for…of Loop in JavaScript

const scores = [22, 54, 76, 92, 43, 33];

for (score of scores) {
    console.log(score);
}

// will return
// 22
// 54
// 76
// 92
// 43
// 33

How to Loop through Array Elements

for str in ${myArray[@]}; do
  echo $str
done

loop through array

#include <iostream>
using namespace std;

int main ()
{
   string texts[] = {"Apple", "Banana", "Orange"};
   for( unsigned int a = 0; a < sizeof(texts); a = a + 1 )
   {
       cout << "value of a: " << texts[a] << endl;
   }

   return 0;
}

Iterate Over an Array,

// Task 1
var dairy = ['cheese', 'sour cream', 'milk', 'yogurt', 'ice cream', 'milkshake'];
function logDairy() {
    for (food of dairy) {
        console.log(food)
    }
}

// Task 2
const animal = {
    canJump: true
};
const bird = Object.create(animal);

bird.canFly = true;

bird.hasFeathers = true;

function birdCan() {
    for (value of Object.keys(bird)) {
        console.log(value + ":" + " " + bird[value])
    }
}
// Task 3
function animalCan() {
    for (props in bird) {
        console.log(`${props}: ${bird[props]}`);
    }
}
logDairy();
birdCan();
animalCan()