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forEach(function(element) { /* ... */ })
forEach(function(element, index) { /* ... */ })
forEach(function(element, index, array){ /* ... */ })
forEach(function(element, index, array) { /* ... */ }, thisArg)
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const avengers = ['thor', 'captain america', 'hulk'];
avengers.forEach((item, index)=>{
console.log(index, item)
})
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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)
})
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var colors = ['red', 'blue', 'green'];
colors.forEach(function(color) {
console.log(color);
});
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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
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var colors = ["red", "blue", "green"];
colors.forEach(function(color) {
console.log(color);
});
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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
});
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let numbers = ['one', 'two', 'three', 'four'];
numbers.forEach((num) => {
console.log(num);
}); // one //two //three // four
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const myArray = ['hello', 1, 'thanks', 5];
myArray.forEach((item, index)=>{
console.log(index, item)
})
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const numbers = [28, 77, 45, 99, 27];
numbers.forEach(number => {
console.log(number);
});
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fruits.forEach(function(item, index, array) {
console.log(item, index)
})
// Apple 0
// Banana 1