isEqual - nodef/extra-map GitHub Wiki

Check if two maps are equal.

Similar: compare, isEqual.

function isEqual(x, y, fc, fm)
// x:  a map
// y:  another map
// fc: compare function (a, b)
// fm: map function (v, k, x)

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

var x = new Map(['a', 1], ['b', 2](/nodef/extra-map/wiki/'a',-1],-['b',-2));
var y = new Map(['a', 1], ['b', 2](/nodef/extra-map/wiki/'a',-1],-['b',-2));
map.isEqual(x, y);
// → true

var y = new Map(['a', 11], ['b', 12](/nodef/extra-map/wiki/'a',-11],-['b',-12));
map.isEqual(x, y);
// → false

map.isEqual(x, y, (a, b) => (a % 10) - (b % 10));
// → true

map.isEqual(x, y, null, v => v % 10);
// → true

References