Javascript Snippets

Overview for JavaScript Array Methods

Source: https://www.youtube.com/playlist?list=PLgBH1CvjOA62PBFIDq55-S6Beivje30A2

forEach method

const = numbers = [1, 2, 3, 4, 5];

numbers.forEach(printItem);

function printItem(item, index, arr) {
  console.log('item number' + index + 'has value of' + item)
}

// Expected outcome

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Can also be written with a arrow function.

---

const = numbers = [1, 2, 3, 4, 5];

numbers.forEach((item, index, arr) => {
    console.log('item number' + index + 'has value of' + item)
}

// Expected outcome

---

So what does the 'arr' property do? Lets just see.

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const = numbers = [1, 2, 3, 4, 5];

numbers.forEach((item, index, arr) => {
    console.log(arr)
}

// Expected outcome

UseCases