Split and Join

Break text into parts and join it again.

split_join.js

const glue = "to";
const text = "red green blue";
const parts = text.split(" ");
const label = parts.join(glue);

console.log("count=" + parts.length);
console.log("label=" + label);
console.log("last=" + parts[parts.length - 1]);

split-join `split` turns one string into an array. `join` turns the array back into a string with a chosen separator.