I have a function that changes months into numbers, but I'd like to add 0 before the month's number

Question

I have a date like:

19/août/2016 (août = august)

And I have the following function which changes the month into a number:

function swapMonthForNumber(str:String):String {
    //do the same line of code for every item in the array
    for(var i:int=0;i<months.length;i++){
        //i is the item, which is 0 based, so we have to add 1 to make the right month number
        str = str.replace(months[i],String(+i+1));
    }

    //return the updated string
    return str;
}

str = swapMonthForNumber(mySharedObject.data.theDate);
trace("Php will use this date :"+str);

So str will be 19/8/2016, but I want str to be 19/08/2016 (adding a 0 before the 8).

How can I do this?

Answer 1

Check out the reference of the Date class!

If forgot to mention this link : flash.globalization.DateTimeFormatter

DateTimeFormatter(requestedLocaleIDName:String, dateStyle:String = "long", timeStyle:String = "long")

Here is an example.

import flash.globalization.DateTimeFormatter;
var df:DateTimeFormatter = new DateTimeFormatter(LocaleID.DEFAULT, DateTimeStyle.SHORT, DateTimeStyle.NONE);
var currentDate:Date = new Date(2016,7,19);
var shortDate:String = df.format(currentDate);
trace (shortDate);

// output : 19/08/2016

DateTimeStyle

LocaleID

Answer 2

Adding leading zeros to a number is commonly called zero padding.

Below is a function to do this, from the answer here.

public function zeroPad(number:int, width:int):String {
   var ret:String = ""+number;
   while( ret.length < width )
       ret="0" + ret;
   return ret;
}

In your swapMonthForNumber function, in the for loop, swap the code for this:

var month = zeroPad(i + 1, 2);
str = str.replace(months[i], month);