js loop with index and element code example

Example 1: js get index from foreach

var myArray = [123, 15, 187, 32];

myArray.forEach(function (value, i) {
    console.log('%d: %s', i, value);
});

// Outputs:
// 0: 123
// 1: 15
// 2: 187
// 3: 32

Example 2: javascript for loop return index

const targetindex = myarray.findIndex(item => item.name === 'xyz');