Question

I have this:

var str = A123B234C456;

I need to split it into comma-separated chunks to return something like this:

A,123,B,234,c,456

I thought a regular expression would be best for this, but I keep getting stuck. Essentially, I tried to do a string replace, but you cannot use a regular expression in the second argument.

I would love to keep it simple and clean and do something like this, but it does not work:

str = str.replace(/[\d]+/, ","+/[\d]+/);

But in the real world that would be too simple.

Is it possible?

Answer 1

It may be more sensible to match the characters and then join them:

str = str.match(/(\d+|[^\d]+)/g).join(',');

But don’t omit the quotes when you define the string:

var str = 'A123B234C456';