url-regex-safe
Regular expression matching for URL's. Maintained, safe, and browser-friendly version of url-regex. Resolves CVE-2020-7661. Works in Node v10.12.0+ and browsers.
get-proto
Robustly get the [[Prototype]] of an object
is-descriptor
Returns true if a value has the characteristics of a valid JavaScript descriptor. Works for data descriptors and accessor descriptors.
has-proto
Does this environment have the ability to get the [[Prototype]] of an object on creation with `__proto__`?
is-data-descriptor
Returns true if a value has the characteristics of a valid JavaScript data descriptor.