Uncaught TypeError: o.hasOwnProperty is not a function code example

Example 1: Uncaught TypeError: person.hasownproperty is not a function

Uncaught TypeError: person.hasownproperty is not a function

Example 2: hasOwnProperty is not a function

// Calls "hasOwnProperty" on queryData, even if queryData has
// no prototype:
console.log(Object.hasOwnProperty.bind(queryData)('session'));