Javascript Array to Sentence

Question

How can I turn an array, such as ["Susy", "John", "Mary"] to "Susy, John, and Mary" in Javascript? I can't get Ruby's to_sentence method out of my head.

Answer 1

Using newest JavaScript (Chrome 72+):

new Intl.ListFormat().format(["Susy", "John", "Mary"]);

which will result in:

"Susy, John, and Mary"