how to split array with comma code example

Example 1: separatly fetch a strings with commas inn js

$(function(){
    var s = "jpeg, jpg, gif, png";
    var match = s.split(', ')
    console.log(match)
    for (var a in match)
    {
        var variable = match[a]
        console.log(variable)
    }
})

Example 2: javascript split string into array by comma and space

input.split(/[ ,]+/); //splits string using RegEx on a space OR a comma