has

has(target, value)

Checks if the target set contains the specified value. Returns true if the value exists, false otherwise.

data-first

has(new Set([1, 2, 3]), 2); // true
has(new Set([1, 2, 3]), 4); // false

data-last

pipe(new Set([1, 2, 3]), has(2)); // true
pipe(new Set([1, 2, 3]), has(4)); // false