gettingstarted.txt

Getting started with javascript


Variables

In javascript variables are used to store information. Variables are also case sensitives. 
You can store strings, arrays, numbers or objects

<pre><code class="javascript">

var a = "Hello";
console.log(a) //prints out Hello
var A = "World";
console.log(A) //prints out World

//store an array in a variable
var array = [1,2,4];
console.log(array) // [1, 2, 4]
</code></pre>

You can also do arithmetic with variables. All the common operators work "+, -, *, /"

<pre><code class="javascript">

var num1 = 10;
var num2 = 15;

var num3 = num1 + num2;
console.log(num3) //25
</code></pre>

If you use the plus operators with strings then the two strings are concatenated.
<pre><code class="javascript">

var a = "Hello";
var b = "World";
// concatenated an empty space also to make the print out clear
var wholeString = a + " "+ b;
console.log(wholeString)//Hello World
</code></pre>