function isEmpty isEmpty(thing: unknown[]): boolean Determines if the given thing is empty. Things are empty when: They are None They are empty strings They are strings of only whitespace They have length or size Examples Example 1 isEmpty([]); // true isEmpty([0]); // false isEmpty(""); // true isEmpty(" "); // true isEmpty(new Set()); // true isEmpty({}); // true isEmpty(new Map()); // true Parameters thing: unknown[] Return Type boolean isEmpty(thing: unknown): boolean Parameters thing: unknown Return Type boolean