hasOwnProperty & Object.keys in javascript not working as expected...

Node.js hasOwnProperty does not work even when the property exists...

JavaScript: hasOwnProperty vs dot syntax...

Object.hasOwnProperty multiple levels without error...

How to check chain of hasOwnProperty in objects...

Can I use a for loop with if statement in place of .hasOwnProperty()...

Stuck on a javascript function for my game...

Typescript: object.hasOwnProperty() shows true on inherited property. Why?...

How can I access columns.roles in Power BI development?...

Using hasOwnProperty dynamically for error 'Cannot read property '...' of undefined'...

How to differentiate between property and value passed in a function together...

Iterating through inherited object properties when hasOwnProperty() is false...

Iterate through array of objects and print out property value...

Use ES6 proxy to trap Object.hasOwnProperty...

Are there any cases when I should use the in operator instead of hasOwnProperty()?...

Cannot convert null or undefined to object when using hasOwnProperty...

Weird .hasOwnProperty behaviour...

Using function to for-in loop through object to change values then return result...

Array filter returns strange results...

why property defined after object's instantiation is not an own property...

.hasOwnProperty('getComputedStyle') false in IE 11...

Obscure way to test for own properties...

Battle: hasOwnProperty vs obj.prop...

Flex 4.6 hasOwnProperty not working...

hasOwnProperty returns false in FF...

Javascript hasOwnProperty always false on Event objects?...

JavaScript: Why does the Object.hasOwnProperty method behave like this?...

does jquery.each check for hasOwnProperty?...

Find out if type has property...

is there a method equal to hasOwnProperty() that can traverse prototype chain?...