forEach

Call a function for each value.

function forEach(x, fp)
// x:  a set
// fp: process function (v, v, x)

const set = require('extra-set');

var x = new Set([1, 2, -3, -4]);
set.forEach(x, v => console.log(v));
// → 1
// → 2
// → -3
// → -4

References

• Array.prototype.forEach: MDN web docs
• array_walk: PHP
• Array.forEach: sugarjs
• foreach: @manuelstofer