I have an array of dates in year/month/day format that I want to go through and count the days in each month occuring throughout the array. Star. Suppose, we have an array of Strings that contains month-year combined strings like this − const arr = ["2009-feb", "2009-jan", "2010-mar", "2010-jan", "2011-jul", "2011-sep", "2011-jan", "2012-jan", "2012-dec", "2012-feb", "2013-may", "2013-jul", "2013-jun", "2014-jan", "2014-dec", "2014-may", "2015-may", "2015-jan", "2015-jun", "2016-jan", "2016-dec"]; Syntax var arr = … toLocaleString ( ' en-US ' , { month : ' long ' }) }); console . Usually, less code for me means it’s … javascript has various methods like, new Set(), forEach() method, for loop, reduct(), filter() with findIndex() to remove duplicate objects from javascript array. But following is the concise and efficient code that uses a single array of month names to return … Parameters: Home; About Us. Given two dates and the task is to get the array of dates between the two given dates using JavaScript. Select the first and last date and store into variable. Check if start date is less then stop date then push the currentdate in an array and increment its value by 1 day. Second Method – javaScript sum array values using reduce () method. array of months javascript - exoskeltech.com Using the Object.assign() method, you can transform an array into an object. After the split is used, the substring is returned in an array. use the JavaScript filter array method