Array.prototype.every()
Array.isArray()
Object.getOwnPropertyDescriptor()
Array.prototype.splice()
Object.isExtensible()
Array.prototype.indexOf()
Object.defineProperty()
Object.create()
Object.getOwnPropertySymbols()
HTML
Object.seal()
Object.getOwnPropertyDescriptors()
Object.isSealed()
Promise
Array.prototype.findIndex()
