how to check if object has key javascript
myObj.hasOwnProperty('key') // it checks object for particular key and not on prototype
Source: stackoverflow.com
js object contain key
if ('key' in myObj) // better if (!myObj.hasOwnProperty('key'))
typescript check if object has key
if ('key' in myObj)
Source: stackoverflow.com
js object contains key
if (myObj['key']) { // Do something }
check object has key javascript
Object.prototype.hasOwnProperty()
Source: stackoverflow.com