What is Java Script?
–>Java Script is a scripting language.
–>Java script is used put dynamic content in HTML for client side validation.
–>HTML is just used to design the webpage.In the webpage there is no interactivity of client.
For example:
–>By using HTML we can design the Email webpage.We can enter any information in that page it will take.we can’t restrict that in email you should use @ symbol like that.
–>Where as by embedding Java Script in HTML we can validate the information.If user does not enter the email with @ symbol,we can validate.
So,Interactive pages we can’t built only with HTML,we need a programming language.So, Netscape introduced a client side language called Java Script.
–>Java Script is a Netscape cross platform,it is object-based scripting language.
How does Java Script works?
–>When java script code is inserted in to HTML,HTML webpage is opened in web browser.Browser reads the HTML content .
–>It interprets the Java Script.
–>It executes the Java Script immediately,or later based on the user action or system event.
My technical blog 