Styjun

This is my data format:

 "21/03/2019 19:18"

The problem i am facing is, when ever if i am dealing with date or time there is an issue with the month ( it has 03 instead of 3 ). I am using library called date-fns. And also i have tried with the help of javascript date objects without using library, but no luck still the month should not have zero in-front of it.

So, how to remove the "0" in-front of "3", and one more problem is how to do this conditionally , because when its Dec, i will be getting data as "21/12/2019 19:18". So, in this case , i should not remove "1" as its located in same position of "0" in previous scenario.

In other words, i want to remove "0" by checking if there is "1" presented in that position or index, if presented then remove else remove "0"

How to achieve this.

I tried the below code:

 const d = new Date(2019,03,21)

But, its says legacy error. So when i removed "0" infront of "3" it works fine. Please help

I assume you get the data back as a string and you just want to remove leading zeros from the 2nd number only?

we can use .split to break up the string into parts, and then we can use parseInt to convert some string parts into numbers. that will turn the string "03" into the number 3

function removeleadingZerosFromDateString(str) 
 //Break up the date string on the slashes and whitespace, so we have an array of all the parts
 var parts = str.split(//

var result = removeleadingZerosFromDateString("21/03/2019 19:18 PM");
 console.log(result);

You said you were using date-fns, so I'll give an answer in that regard.

The current 1.x version doesn't support parsing strings in a custom format, but they are adding that to 2.x, and you can use the alpha release to try it today.

The syntax is:

var date = parse(dateString, formatString, baseDate, [options]);

See the documentation for the parse function in version 2.0.0-alpha.27.

In your case, it would be like this:

var date = parse("21/03/2019 19:18", "MM/dd/yyyy HH:mm", new Date());

Lastly, if you want to use a library for this but don't want to experiment with an alpha, you can either wait for Date-fns 2.0 to become final, or you can try Luxon or Moment - both of which already have this functionality (though Moment uses a slightly different token format "MM/DD/YYYY HH:mm").