push - nodef/extra-iterable GitHub Wiki
Add values to the end.
function push(x, ...vs)
// x: an iterable
// vs: values to add
const xiterable = require('extra-iterable');
var x = [1, 2];
[...xiterable.push(x, 3)];
// → [1, 2, 3]
[...xiterable.push(x, 3, 4)];
// → [1, 2, 3, 4]