You might have seen many websites having an option of capturing web camera image for profile pictures. Especially Facebook has this feature, either you can upload image from your computer or you can take photo using Web Camera.
This tutorial shows how to pass the data dynamically to Highcharts using jQuery. No server side script used such as PHP or ASP. So, this tutorial will teach you only passing the data not to create data. If you want to create dynamic data then you should use server side scripting.
Lets say you have a very long webpage with a lot of text content and email addresses in it, If you want to take out only the email addresses manually, it is not very easy. It will take plenty of your time to extract all of them and there is a chance we miss some of the email addresses!
If you are a web developer you should be doing form validation for almost all of your websites, spending time on validation is another issue if you are working in a company, everybody in this programming world is in hurry, they need all the functionality should be done in 1 or 2 days.