how to mask the full input but the last four number

I would like to mask all the numbers but the last two. Like the following example:

IN:
123451234
    *****1234
12341234
   ****1234

I’ve tried the following unsuccessfully:

          <input matInput 
            mask="\(X\)*0000"
            [hiddenInput]="true"


          <input matInput 
            mask="X*0000"
            [hiddenInput]="true"


          <input matInput 
            mask="X{,}0{4}"
            [hiddenInput]="true"

[aemonge]

@AlexeyDolya that works with a seven digit input. I mean, if you input 12345678 you get the expected last two numbers to be the only ones visibles.

But, if you input a six o five digit number 12345; you won’t get the expected behaviour; you wouln’t see the last two digits, it will be masked.

The issue/improvment is to be able to apply mask from right to left, the same way is now working from left to right.

[ArturV93]

Not the best solution, but you can use OR statement for mask.

<input [hiddenInput]=“true” mask=“XXX00 || XXXX00 || XXXXX00”>