for of get index
for (const v of ['a', 'b', 'c']) {
console.log(v)
}
// get index
for (const [i, v] of ['a', 'b', 'c'].entries()) {
console.log(i, v)
}for of get index
for (const v of ['a', 'b', 'c']) {
console.log(v)
}
// get index
for (const [i, v] of ['a', 'b', 'c'].entries()) {
console.log(i, v)
}javascript enumerate with index
const iterable = [...];
for (const [index, elem] in iterable.entries()) {
f(index, elem);
}
// or
iterable.forEach((elem, index) => {
f(index, elem);
});Copyright © 2021 Codeinu
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