how to get comma separated values in javascript code example

Example 1: convert number to comma separated format javascript

// Convert a number to a string with commas
function numberWithCommas(x) {
    return x.toString().replace(/\B(?=(\d{3})+(?!\d))/g, ",");
}

// Convert a number to a string with commas taking into account decimal point
function numberWithCommasDecimal(x) {
    return x.toString().replace(/\B(?<!\.\d*)(?=(\d{3})+(?!\d))/g, ",");
}

Example 2: javascript array to comma separated string

var colors = ["red", "blue", "green"];
var colorsCSV = colors.join(","); //"red,blue,green"

Example 3: 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 4: javascript split string into array by comma and space

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