We read every piece of feedback, and take your input very seriously.
To see all available qualifiers, see our documentation.
Check if a map is empty.
Similar: size, isEmpty.
function isEmpty(x) // x: a map
const map = require('extra-map'); var x = new Map([['a', 1], ['b', 2], ['c', 3]]); map.isEmpty(x); // → false var x = new Map(); map.isEmpty(x); // → true