Functions, objects and arrays.

We began our day with functions, object and arrays. A function in JavaScript is a block of code written to act and it can be reused. E.g.:

function myFunction(x, y, z){ 
       return x + y * z; 
         }

Object is a data type in JavaScript and a data structure. It can contain many values with different data types even method(function); E.g:

var person = { name: "John", 
                age: 38, 
                isMarried: false, 
                hello: function() { return "Hello " + this.name; 
                       }
              }; 

An array stores data in a single variable and often similar data. E.g: var listOfColors = ["green","yellow","red"];

We did exercises using a different method in small groups. It was helpful, learned from each other.