JavaScript Iterators

for...of Loop

Modern way to iterate over arrays and strings.

const fruits = ['apple', 'banana', 'orange'];

for (const fruit of fruits) {
  console.log(fruit);
}

Better than: Traditional for loop

Iterable Objects

Arrays, strings, maps, sets are iterable.

for (const char of 'hello') {
  console.log(char);
}

Key Takeaway

for...of iterates over iterable objects. Cleaner than traditional loops. Works with arrays, strings, maps, sets.