Bash -Convert string to list of string

In a bash i would like to convert string to list of strings , like below

Input: a,b,c
Expected Output: ["a","b","c"]

Can someone please assist me with my query ?

>Solution :

Use parameter expansion.

input=a,b,c
echo '["'"${input//,/'"','"'}"'"]'

It outputs:

'["' "${input//,/'"','"'}" '"]'
 ["       |                 "]
          |
          v
     here, each comma
     is replaced by ","