JAVASCRIPT

javascript foreach

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

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)
});

foreach javascript

let words = ['one', 'two', 'three', 'four'];
words.forEach((word) => {
  console.log(word);
});
// one
// two
// three
// four

foreach javascript

var items = ["item1", "item2", "item3"]
var copie = [];

items.forEach(function(item){
  copie.push(item);
});

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
});

foreach loop javascript

const numList = [1, 2, 3];

numList.forEach((number) => {
  console.log(number);
});

foreach jas

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

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

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

foreach loop javascript

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']

foreach js

const arr = ["some", "random", "words"]

arr.forEach((word) => {       // takes callback and returns undefined
	console.log(word)
})

/* will print:
   some
   random
   words    */ 

javascript foreach

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

foreach javascript

let names = ['josh', 'joe', 'ben', 'dylan'];
// index and sourceArr are optional, sourceArr == ['josh', 'joe', 'ben', 'dylan']
names.forEach((name, index, sourceArr) => {
	console.log(color, idx, sourceArr)
});

// josh 0 ['josh', 'joe', 'ben', 'dylan']
// joe 1 ['josh', 'joe', 'ben', 'dylan']
// ben 2 ['josh', 'joe', 'ben', 'dylan']
// dylan 3 ['josh', 'joe', 'ben', 'dylan']

for each

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

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

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

foreach javascript

const dogs = [
 'Husky','Black Lab',
 'Australian Shepard',
 'Golden Retriever', 
 'Syberian Husky', 
 'German Shepard' 
]

dogs.forEach(function(dog) {
	console.log(dog); 
});

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)
})

forEach method Javascript

var counter = new Counter();
var numbers = [1, 2, 3];
var sum = 0;
numbers.forEach(function (e) {
    sum += e;
    this.increase();
}, counter);

console.log(sum); // 6
console.log(counter.current()); // 3
Code language: JavaScript (javascript)

foreach javascript

const names=["shirshak", "John","Amelia"]
//forEach is only for array and slower then for loop and for of loop 
//forEach we get function which cannot be break and continue as it is not inside 
//switch or loop.
names.forEach((name,index)=> {
console.log(name,index)//
})

foreach loop javascript

listName.forEach((listItem) => {
  Logger.log(listItem);
}):

foreach javascript

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

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"

js foreach

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

javascript foreach

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

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 functions javascript

  //Am goinmg to practice the next big thing, using for.each function yo tripple iontegers in an array :)
  //for.each function is used to run a command on each number or string in an array 
  const theFigures = [2,4,5,6,7,8,9,12,23,45,68,31,90];
  const afterMath = (num) => {
    const theArray = [];
    num.forEach((n) => {
      const trippled = n*3;
      theArray.push(trippled);
    });
    return theArray;
  }
  console.log(afterMath(theFigures));

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);
}

foreach js

angular.forEach(obj1.results, function(result1) {
    angular.forEach(obj2.results, function(result2) {
        if (result1.Value === result2.Value) {
            //do something
        }
    });
});

//exact same with a for loop
for (var i = 0; i < obj1.results.length; i++) {
    for (var j = 0; j < obj2.results.length; j++) {
        if (obj1.results[i].Value === obj2.results[j].Value) {
            //do something
        }
    }
}

for each loop in javascript

array.forEach(element => {
  // syntex
});

foreach javascript

Used to execute the same code on every element in an array
Does not change the array
Returns undefined

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]);