Dates and Time are an essential part of any programming language, including JavaScript. They are used to represent specific moments in time. JavaScript provides several built-in objects and methods to work with dates, making it easier for developers to manage and manipulate dates in their applications.
Creating Dates in JavaScript
In JavaScript, we can create a new date object using the ‘Date()’ constructor. The ‘Date()’ constructor takes several parameters, such as year, month, day, hour, minute, and second, to create a new date object.
There are 9 ways to create a new date object:
Let d = new Date()
Let d = new Date(date string)
Let d = new Date(year,month)
Let d = new Date(year,month,day)
Let d = new Date(year,month,day,hours)
Let d = new Date(year,month,day,hours,minutes)
Let d = new Date(year,month,day,hours,minutes,seconds)
Let d = new Date(year,month,day,hours,minutes,seconds,ms)
Let d = new Date(milliseconds)
Once we have created a date object, we can use several built-in methods to work with it. For example, we can use the ‘getFullYear()’ method to get the year of the date object, ‘getMonth()’ to get the month, ‘getDate()’ to get the day of the month, and so on.
We can also use methods like ‘getTime()’ to get the number of milliseconds since January 1, 1970, ‘setFullYear()’ to set the year of the date object, ‘setMonth()’ to set the month, and ‘setDate()’ to set the day of the month.
Formatting Dates
We can use the ‘toLocaleDateString()’ method to format the date object as a string in a specific format based on the user’s locale.
let date = new Date(); let formattedDate = date.toLocaleDateString(‘en-US’, {weekday: ‘long’, year: ‘numeric’, month: ‘long’, day: ‘numeric’}); console.log(formattedDate);
Conclusion
Dates are a fundamental concept in JavaScript, and they are used to represent specific moments in time. We have seen how to create date objects, work with them, and format them. Understanding dates is crucial for any JavaScript developer, so make sure to practice and master this concept.