Discover Functional JavaScript was named one of the best new Functional Programming books by BookAuthority!
Objects are dynamic collections of properties, with a “hidden” property to the object’s prototype.
A property has a key and a value.
Property key
The property key is a unique string.
There are two ways to access properties: dot notation and bracket notation. When the dot notation is used, the property key must be a valid identifier.
let obj = { message : "A message"}obj.message //"A message"obj["message"] //"A message"Accessing a property that doesn’t exist will not throw an error, but will return undefined .
obj.otherProperty //undefinedJavaScript treats primitives, objects, and functions like objects.
Objects are dynamic in nature and can be used as maps.
Objects inherit from other objects. Constructor functions and class are sugar syntax for creating objects that inherit from other prototype objects.
Object.create() can be used for single inheritance and Object.assign() for multiple inheritance.
Factory functions can build encapsulated objects.
Read Functional Architecture with React and Redux and learn how to build apps in function style.
Discover Functional JavaScript was named one of the best new Functional Programming books by BookAuthority!
For more on applying functional programming techniques in React take a look at Functional React.