const flightName = {
airline: 'luftansa',
itaCode: 'LH',
book: function(flightname, text) {
console.log(`This is ${flightname},${text}`);
}
}
flightName.book('indigo', 'johnny');
let book1 = flightName.book;
book1.call('Johnny', 'King');Output:
This is indigo,johnny
This is King,undefined
Try this
const flightName ={
airline: 'luftansa',
itaCode: 'LH',
book: function(flightname,text)
{
console.log(`This is ${flightname},${text}`);
}
}
flightName.book('indigo','johnny');
let book1 = flightName.book;
book1.call(this, 'Johnny','King');
you are calling your call funciton inccorect, call function is not supposed to work that way, as document stated: you should use it in this manner:
call()
call(thisArg)
call(thisArg, arg1)
call(thisArg, arg1, arg2)
so you need to change your code to:
book1.call(flightName,'johny', 'king');