ES6 entries() iterator

returns a two-item array

by Rich Costello

JavaScript

let colors = ["red", "green", "blue"];
let tracking = new Set([1234, 5678, 9012]);
let data = new Map();

data.set("title", "Understanding ECMAscript 6");
data.set("format", "ebook");

for (let entry of colors.entries()) {
	console.log(entry);
}

for (let entry of tracking.entries()){
	console.log(entry);
}

for (let entry of data.entries()) {
	console.log(entry);
}