JAVASCRIPT

javascript foreach

const avengers = ['thor', 'captain america', 'hulk'];
avengers.forEach((item, index)=>{
	console.log(index, item)
})

array.foreach

let arr = [1,2,3]

// forEach accepts a function, and each value in array is passed to the 
// function. You define the function as you would any regular
// function, you're just doing it inside the forEach loop
arr.forEach(function(value){
  console.log(value)
})

// you also have access to the index and original array:
arr.forEach(function(value, idx, array){
  console.log(idx, value, array)
})

// it's common for the arrow notation to be used: it's effectively
// the same thing but the function keyword is removed and the syntax is
// a bit different
arr.forEach((value) => {
  console.log(value)
})

for each js

const fruits = ['mango', 'papaya', 'pineapple', 'apple'];

// Iterate over fruits below

// Normal way
fruits.forEach(function(fruit){
  console.log('I want to eat a ' + fruit)
});

js for each item in array

const array1 = ['a', 'b', 'c'];

array1.forEach(element => console.log(element));

// expected output: "a"
// expected output: "b"
// expected output: "c"

Javascript forEach

const products = [
    { name: 'Laptop', price: 32000, brand: 'Lenovo', color: 'Silver' },
    { name: 'Phone', price: 700, brand: 'Iphone', color: 'Golden' },
    { name: 'Watch', price: 3000, brand: 'Casio', color: 'Yellow' },
    { name: 'Aunglass', price: 300, brand: 'Ribon', color: 'Blue' },
    { name: 'Camera', price: 9000, brand: 'Lenovo', color: 'Gray' },
];
products.forEach(product => console.log(product.name));
//Output: Laptop Phone Watch Aunglass Camera

js foreach

var stringArray = ["first", "second"];

myArray.forEach((string, index) => {
  	var msg = "The string: " + string + " is in index of " + index; 
	console.log(msg);
	
	// Output:
	// The string: first is in index of 0
	// The string: second is in index of 1
});

javascript foreach

let numbers = ['one', 'two', 'three', 'four'];

numbers.forEach((num) => {
  console.log(num);
});  // one   //two //three // four

for each javascript

let numbers = ['one', 'two', 'three', 'four'];

numbers.forEach((num) => {
  console.log(num);
});  // one   //two //three // four

javascript foreach

var array = ["a","b","c"];
// example 1
  for(var value of array){
    console.log(value);
    value += 1;
  }

// example 2
  array.forEach((item, index)=>{
    console.log(index, item)
  })

javascript .foreach

let colors = ['red', 'blue', 'green'];
// idx and sourceArr optional; sourceArr == colors
colors.forEach(function(color, idx, sourceArr) {
	console.log(color, idx, sourceArr)
});
// Output:
// red 0 ['red', 'blue', 'green']
// blue 1 ['red', 'blue', 'green']
// green 2 ['red', 'blue', 'green']

javascript foreach

fruits.forEach(function(item, index, array) {
  console.log(item, index)
})
// Apple 0
// Banana 1

for each array javascript

var fruits = ["apple", "orange", "cherry"];
fruits.forEach(getArrayValues);

function getArrayValues(item, index) {
  console.log( index + ":" + item);
}
/*
result:
0:apple
1:orange
2:cherry
*/

javascript forEach

const myArray = ['hello', 1, 'thanks', 5];
myArray.forEach((item, index)=>{
	console.log(index, item)
})

javascript array foreach

arr.forEach(function (item, index, array) {
  // ... do something with item
});

perform a function on each element of array javascript

var new_array = old_array.map(function(e) { 
  e.data = e.data.split(','); 
  return e;
});

javascript foreach

var arr = [1, 2, 3, 4];

arr.forEach(function(element) {
  console.log(element);
});

javascript foreach

const colors = ['blue', 'green', 'white'];

function iterate(item) {
  console.log(item);
}

colors.forEach(iterate);
// logs "blue"
// logs "green"
// logs "white"

javascript foreach

// Arrow function
forEach((element) => { /* ... */ })
forEach((element, index) => { /* ... */ })
forEach((element, index, array) => { /* ... */ })

js foreach

for (let i in arr) {
	console.log(i);
}

javascript for each

// array for the forEach method
let grades = [13, 12, 14, 15]

// for each loop
grades.forEach(function(grade) {
	console.log(grade) // loops and logs every grade of the grades array
})

for each array

$array  = array("dog", "rabbit", "horse", "rat", "cat");
$x = 1;
$length = count($array);

foreach($array as $animal){
    if($x === 1){
        //first item
        echo $animal; // output: dog
    }else if($x === $length){
        echo $animal; // output: cat
    }
    $x++;
}

js foreach

for (const element of theArray) {
    // ...use `element`...
}

javascript for each loop

const a = ["a", "b", "c"];
for (const val of a) { // You can use `let` instead of `const` if you like
    console.log(val);
}

javascript array foreach

const fruits = ['apple', 'orange', 'banana', 'mango'];
fruits.forEach((item, index)=>{
	console.log(index, item)
});

javascript for each loop

for (let key in exampleObj) {
    if (exampleObj.hasOwnProperty(key)) {
        value = exampleObj[key];
        console.log(key, value);
    }
}

javascript foreach

arr.forEach(function callback(currentValue, index, array) {
    // tu iterador
}[, thisArg]);