Is Empty

Requirements

• Implement isEmpty(value), returning a boolean. null, undefined, and scalar primitives other than strings are empty, including booleans, numbers, symbols, and bigint values.
• Strings are empty only when length is zero. Arrays, typed arrays, and arguments objects are empty only when their element length is zero. Array holes still count toward length; do not inspect extra named properties on these collections.
• Maps and sets are empty when size is zero, ignoring extra named properties.
• Other objects and functions are empty if they have no own enumerable string-keyed properties. Ignore inherited properties, non-enumerable properties, and symbols. An ordinary record with a length property follows the object rule, not the array rule.
• Use current-realm built-in collections. Dates, regular expressions, DataView, and weak collections follow the ordinary own-property rule. Do not mutate input or invoke function values.

Examples

Input: isEmpty([]); isEmpty([,]); isEmpty({}); isEmpty({a:1});
Output: true; false; true; false

Input: isEmpty(0); isEmpty(" "); isEmpty(new Set([1]));
Output: true; false; false