typescript check if property exists code example
Example 1: how to check wether the property exist in a object in java script
if (obj.hasOwnProperty('prop')) {
// do something
}
Example 2: check if js property exists in class
myObj.hasOwnProperty(myProp)
Example 3: test if property exists javascript
const hero = {
name: 'Batman'
};
hero.hasOwnProperty('name'); // => true
hero.hasOwnProperty('realName'); // => false