hasSubset - nodef/extra-object GitHub Wiki
Check if object has a subset.
Similar: has, hasValue, hasEntry, hasSubset, hasPath. Similar: subsets, hasSubset, randomSubset.
function hasSubset(x, y, fc, fm)
// x: an object
// y: search subset
// fc: compare function (a, b)
// fm: map function (v, k, x)
const object = require('extra-object');
var x = {a: 1, b: 2, c: 3, d: 4};
var y = {b: 2, d: 4};
object.hasSubset(x, y);
// → true
var y = {b: -2, d: -4};
object.hasSubset(x, y);
// → false
object.hasSubset(x, y, (a, b) => Math.abs(a) - Math.abs(b));
// → true
object.hasSubset(x, y, null, v => Math.abs(v));
// → true