symmetricDifference$ - nodef/extra-map GitHub Wiki
Obtain entries not present in both maps.
Alternatives: symmetricDifference, symmetricDifference$. Similar: union, intersection, difference, symmetricDifference, isDisjoint.
function symmetricDifference$(x, y)
// x: a map (updated)
// y: another map
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));
var y = new Map(['c', 30], ['d', 40], ['e', 50], ['f', 60](/nodef/extra-map/wiki/'c',-30],-['d',-40],-['e',-50],-['f',-60));
map.symmetricDifference$(x, y);
// → Map(4) { 'a' => 1, 'b' => 2, 'e' => 50, 'f' => 60 }
x;
// → Map(4) { 'a' => 1, 'b' => 2, 'e' => 50, 'f' => 60 }
var x = new Map(['a', 1], ['b', 2], ['c', 3], ['d', 4](/nodef/extra-map/wiki/'a',-1],--['b',-2],--['c',-3],-['d',-4));
var y = new Map(['d', 40], ['e', 50], ['f', 60](/nodef/extra-map/wiki/'d',-40],-['e',-50],-['f',-60));
map.symmetricDifference$(x, y);
// → Map(5) { 'a' => 1, 'b' => 2, 'c' => 3, 'e' => 50, 'f' => 60 }