javascript month name
let date = new Date(2020, 05, 21); // 2020-06-21 let longMonth = date.toLocaleString('en-us', { month: 'long' }); /* June */ let shortMonth = date.toLocaleString('en-us', { month: 'short' }); /* Jun */ let narrowMonth = date.toLocaleString('en-us', { month: 'narrow' }); /* J */