Javascript dynamically invoke object method from string
Solution 1:
if the name of the property is stored in a variable, use []
foo[method]();
Solution 2:
Properties of objects can be accessed through the array notation:
var method = "smile";
foo[method](); // will execute the method "smile"
Solution 3:
When we call a function inside an object, we need provide the name of the function as a String.
var obj = {talk: function(){ console.log('Hi') }};
obj['talk'](); //prints "Hi"
obj[talk]()// Does not work