Update Multiple Objects Using The Javascript Map() Function

I am trying to refactor a ReactJS component by using a map function. Is it possible to use the map() function to update multiple objects, or the same object twice? I am getting a s

Solution 1:

You're not updating day itself and not modifying the days array, so there's no point using map. Just use a for or forEach loop.

days.forEach(day => {
        initData[`${day}From`] = myStr.slice(0, 2) 
        initData[`${day}To`] = myStr.slice(5, 7)
});