javascript - How to separate a set of obtained data with commas in jquery?

Question

As shown in the figure, on the right side, take the span value of the selected row of the checkbox in all li. The displayed results are connected together, such as 1234. How to separate them with commas? Open, it will display like 1, 2, 3, 4.

Answer 1

It’s very simple, just split it into arrays and then join it:

s.split("").join(",");