for of loop with index javascript code example
Example 1: for of get index
for (const v of ['a', 'b', 'c']) {
console.log(v)
}
for (const [i, v] of ['a', 'b', 'c'].entries()) {
console.log(i, v)
}
Example 2: javascript for...of index
for (const [i, v] of ['a', 'b', 'c'].entries()) {
console.log(i, v)
}
Example 3: javascript enumerate with index
const iterable = [...];
for (const [index, elem] in iterable.entries()) {
f(index, elem);
}
iterable.forEach((elem, index) => {
f(index, elem);
});
Example 4: javascript for of index
let array = ["foo", "bar"]
let low = 0;
let high = array.length;
for(let i = low; i < high; i++) {
console.log(i);
console.log(array[i]);
}
Example 5: javascript for loop return index
const targetindex = myarray.findIndex(item => item.name === 'xyz');