js .hasown code example

Example 1: javascript hasownproperty

var person = {	
  	"first_name": "Bob",
	"last_name": "Dylan"
};
person.hasOwnProperty('first_name'); //returns true
person.hasOwnProperty('age'); //returns false

Example 2: has own propriety javascrip

if (someVar.hasOwnProperty('someProperty') ) {
 // do something();
} else {
 // do somethingElse();
}