Formula help with Google Sheets

Job ID: 32261060

Budget: $10 – $30 AUD

I have a series of numbers in column "A" and looking for a way (equation) to list these numbers in one cell separated by a comma.

For example:

Column A
1
2
3
4
5

Want to list the above numbers in B1 as 1,2,3,4,5.

Thanks.