take - nodef/extra-map GitHub Wiki

Keep first n entries only (default order).

Alternatives: take, take$. Similar: take, drop.

function take(x, n)
// x: a map
// n: number of entries [1]

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

var x = new Map(['a', 1], ['b', 2], ['c', 3], ['d', 4](/nodef/extra-map/wiki/'a',-1],-['b',-2],-['c',-3],-['d',-4));
map.take(x, 2);
// → Map(2) { 'a' => 1, 'b' => 2 }

map.take(x, 3);
// → Map(3) { 'a' => 1, 'b' => 2, 'c' => 3 }

References