JavaScript Form Validation By: Anirudha Prabhune [email_address]

What is JavaScript? A Scripting Language Is an Interpreted Language

A Scripting Language

Is an Interpreted Language

Where is it Used? To improve Design, Validate Forms , create cookies etc.

To improve Design, Validate Forms , create cookies etc.

Java = JavaScript ? NO, both are different languages in concept & design. Java is powerful & much more comples programming language – same as C, C++

NO, both are different languages in concept & design.

Java is powerful & much more comples programming language – same as C, C++

What can JavaScript do? Insert dynamic text into an HTML Page. React to events. Validate Data Read & Write HTML elements.

Insert dynamic text into an HTML Page.

React to events.

Validate Data

Read & Write HTML elements.

What is Validation? A Process of checking if something satisfies a certain criteria Testify a solution or process is correct or compliant with set standards or rules

A Process of checking if something satisfies a certain criteria

Testify a solution or process is correct or compliant with set standards or rules

Why use Validation? To make the User do things you want to. Like : a certain inputbox must contain only text/ only numbers/ a string of fixed length/ email etc. To make the user to fill in a fixed no. of fields mandatorily. Demo

To make the User do things you want to.

Like : a certain inputbox must contain only text/ only numbers/ a string of fixed length/ email etc.

To make the user to fill in a fixed no. of fields mandatorily.

Demo