These powerful new features will modernize your JavaScript with shorter and more expressive code. This guide will bring you up to speed with all the latest features added in ECMAScript 13. The date-fns NPM package provides a parse() function to easily convert strings of various formats to a Date object.ġ1 Amazing New JavaScript Features in ES13.Use the toISOString() method to convert a Date object to an ISO-8601 string for consistent parsing behavior.For non-ISO-8601 date formats, we can split the string and pass the date components as numbers to the Date() constructor.Invalid date formats will result in an error being thrown or an invalid date being created.To convert a string to a Date object in JavaScript, call the Date() constructor and pass the string as an argument.The Date() constructor takes a valid date string as a parameter and returns a Date object. Here we specify that the string is of the MM-dd-yyyy hh:m:ss format so that it can be converted correctly.Ĭonst date = parse(str, 'MM-dd-yyyy hh:m:ss', new Date()) Ĭonsole.log(date) // T08:13:50.000Z Key takeaways Use the Date() constructor to convert a string to a Date object. We can also use parse() function from the date-fns NPM package to easily convert strings of a wide variety of formats to a Date object. The Date toISOString() method returns a string of the date in the ISO 8601 format according to universal time. Can convert back to Date object with browser-independent parsingĬonsole.log(sameDate.getMinutes()) // 13 We can do this with the toISOString() method.Ĭonsole.log(isoString) // T08:13:50.000Z If we want to convert a Date object to a string for storage in a file or database, we can store it in the ISO 8601 format, so that we can retrieve and easily convert it back to a Date object with browser-independent parsing behavior without using any third-party libraries. How to Convert a Date Object to an ISO 8601 String Similarly, the values in the time string were separated with a colon ( :), so this was the separator we used to separate them with the String split() method.Īfter obtaining each date and time value separately, we converted them to numbers with the unary operator ( +) and passed them to the Date() constructor. So we used this as the separator when calling split() to obtain the month, day, and year individually. Unlike in the previous example, this time, the values in the date string were separated with a hyphen ( -). In relation to another point in time, a reference time has to be given.Const = str.split(' ') Ĭonst = dateStr.split('-') Ĭonst = timeStr.split(':') įirst, we had to split the string with a space to use the date and time strings separately. Countdown to interesting timestampts, How To Convert Timestamp To Date and Time in JavaScript, How To Convert Timestamp To Date and Time in Python, How To Get Current Date And Time in JavaScript, How To Get Current Time In Python, How To Get Current Timestamp In Bash, How To Get Current Timestamp In Java, How To Get Current Timestamp In JavaScri. Let timeMs = timeHr + timeMin + timeSec //4353000 - this is the time in milliseconds. Let regExTimeArr = regExTime.exec(timeString) // Ĭonvert HH, MM and SS to milliseconds let timeHr = regExTimeArr * 3600 * 1000 let timeString = "01:12:33" Įxtract values with RegEx let regExTime = /(?):():()/ To be able to do this, there should be a conversion of the string in HH:MM:SS format to JavaScript time.įirstly, we can use Regular Expression (RegEx) to properly extract the values in that string.
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