README
Gets union of set with an iterable.
This is part of package extra-set.
This is browserified, minified version of @extra-set/union-bang.
It is exported as global variable set_union.
CDN: unpkg, jsDelivr.
const unionTo = require('@extra-set/union');
// unionTo(<set1>, <set2>, [target=new Set()])
var a = new Set('call');
var b = new Set('fall');
unionTo(a, b);
// Set {'c', 'a', 'l', 'f'}
unionTo(a, b, a);
// Set {'c', 'a', 'l', 'f'} (set "a" modified)
unionTo(a, b, b);
// Set {'f', 'a', 'l', 'c'} (set "b" modified)