How to increment only digits of string?

Question

I may have following type strings

A1 or 1A or AB....1 or 1AB......

so how to increment only digits of above type of strings in javascript?

var adminNo = data.Admission_No.slice(-2);
                alert(adminNo);
                var removedNo = data.Admission_No.substring(data.Admission_No.length-1);
                alert(removedNo);

What is the expected result for `A001`? For `A999`? – georg Apr 20 '16 at 12:42 — georg, Apr 20 '16 at 12:42
for A001 = A002 and for A999=A1000 – Dawood Abbas Apr 20 '16 at 12:43 — Dawood Abbas, Apr 20 '16 at 12:43
@georg have u answer above comment? – Dawood Abbas Apr 20 '16 at 12:46 — Dawood Abbas, Apr 20 '16 at 12:46

score 4 · Accepted Answer · answered Apr 20 '16 at 12:29

Use the replace method as shown in demo below

    function incrementer(input)
    {
       return input.replace(/\d+/, function(match){ return parseInt(match) + 1 });
    }

    alert(incrementer("A1"));
    alert(incrementer("1A"));

This will find the integer anywhere in the input string and increment it by one.

score 3 · Answer 2 · answered Apr 20 '16 at 12:31

3

string.replace(/\d+/, function(n){ return ++n });

answered Apr 20 '16 at 12:31

Flash Thunder

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with A01 not working...mean getting only A2 ..not getting A02 – Dawood Abbas Apr 20 '16 at 12:38
Becase 01 + 1 = 2 not 02... it's standard. Would be more advanced function to support zerofill... – Flash Thunder Apr 20 '16 at 12:44
for 07k71a0507 incrementing 8k71a0507 where I need to increment like 07k71a0508 – Dawood Abbas Apr 21 '16 at 12:21
@ArmaanAhmed use this to replace all numbers: `string.replace(/\d+/g, function(n){ return ++n });` (added `g` to regexp params) – Flash Thunder Apr 21 '16 at 12:28
I not need to increment first digit in like this strings. just increment only last digits. – Dawood Abbas Apr 21 '16 at 12:42
please update if have any solution for if string has two side digits then increment only last part digit. – Dawood Abbas Apr 21 '16 at 13:07

score 0 · Answer 3 · answered Apr 20 '16 at 12:33

You can do it by taking out integer from your string Its big long, but more self-explainatory

var youroriginalstring="A1"
var withNoDigits = youroriginalstring.replace(/[0-9]/g, '');
var yournumber = youroriginalstring.replace ( /[^\d.]/g, '' );
var incNos=yournumber +1;
var newString = incnos + "withNoDigits"

How to increment only digits of string?

3 Answers3