js const x = y = 0 code example

Example 1: array destructuring methods parameters

const items = [ ['foo', 3], ['bar', 9] ];
items.forEach(([word, count]) => {
    console.log(word+' '+count);
});

Example 2: object destructuring default value

let a, b;

[a=5, b=7] = [1];
console.log(a); // 1
console.log(b); // 7