S2JS - Arrays - lists of things : Examples

Here's an a couple of examples.

We declare an array with four elements
We add another element to the end
We step through all the elements (starting from zero and finishing at length-1), and print them out
We search for a particular element

Have a look at the code and make sure you understand it.

What happens if instead of searching for "banana", you search for something that isn't found?

What happens if you attempt to access an element beyond the length of the array?

<HTML> <body> <canvas id=myCanvas height=200 width=250 style="background-color: khaki"> </canvas> <script> var ctx = myCanvas.getContext("2d"); ctx.font="15px arial"; var fruits = ["orange", "peach", "banana", "pineapple"]; fruits.push("apple"); fruits.sort(); for (var i=0; i < fruits.length; i++) { ctx.fillText("Element at index " + i + " is " + fruits[i], 0, 20+(i*20)); } where_banana = fruits.indexOf("banana"); ctx.fillText("Target found at index " + where_banana, 0, 150); </script> </body> </html>