How to join an array by a comma and a space with JavaScript?

To join an array by a comma and a space with JavaScript, we use the join method.

For instance, we write

const myArray = [
  "css",
  "html",
  "xhtml",
  "html5",
  "css3",
  "javascript",
  "jquery",
  "lesscss",
  "arrays",
  "wordpress",
  "facebook",
  "fbml",
  "table",
  ".htaccess",
  "php",
  "c",
  ".net",
  "c#",
  "java",
];
const myString = myArray.join(", ");

to call myArray.join with ', ' to combine the strings in myArray into a string with the entries separated by ', '.