00 - Hello JavaScript.js

// Line comments start with two forward slashes. Like this line.

/* Multi line comments start with a forward slash and a star,
and end with a star and a forward slash. */

// 1. number
// Variables are used to store objects, and are defined using the keyword var.
var the_answer = 42.0; // 
print(the_answer);

// 2. String objects start and end with a single quote.
var my_variable = "I am a string";
print(my_variable)

// // Parentheses are used to pass parameters to functions.
// print('This string will print in the Console tab.');

// // Square brackets are used for selecting items within a list.  
// // The zero index refers to the first item in the list.
var my_list = ['eggplant', 'apple', 'wheat'];
print(my_list[0]);

// // Curly brackets (or braces) can be used to define dictionaries
// // (key:value pairs).
var my_dict = {'food':'bread', 'color':'red', 'number':42};
print(my_dict.food)
// // Square brackets can be used to access dictionary items by key.
// print(my_dict['color']);

// //Or you can use the dot notation to get the same result.
// print(my_dict.color);

// // Functions can be defined as a way to reuse code and make it easier to read.
// var my_hello_function = function(string) {
//   return 'Hello ' + string + '!';
// };
// print(my_hello_function('world'));