how to calculatoe moment of inertia with J and rad/s code example

Example 1: javascript get time ago with moment

const dateTimeAgo = moment("2020-04-04 11:45:26.123").fromNow();
console.log(dateTimeAgo); //> 6 minutes ago

Example 2: moment get month day

//The correct function to use is .date():

date.date() === 25;