Pick random lines from a text document

JavaScript version
const randomLines = (str, count) => str.split(/\r?\n/).reduce((p, _, __, arr) => (p[0] < count ? [p[0] + 1, p[1].concat(arr.splice((Math.random() * arr.length) | 0, 1))] : p), [0, []])[1];
Examples
randomLines(
`one
two
three
four
five`,
2
);
// ['one', 'four']