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Java script
- 1. Presentation Title Your companyinformation
- 2. Java Script An interpretedobject-oriented computer programming language commonly used to create interactive effects within web browsers. It is embedded into HTML Interpreted language is being executed without compiling
- 3. Interactive Effects It isused to manipulate or move text to make it Dynamic It performs the mathematical actions on data. It reacts to events Automatically change a formatted date on a Web page Cause a linked-to page to appear in a popup window Cause text or a graphic image to change during a mouse hover
- 4. Validation of Data WithHTML we can only see the interface. With CSS we can see the styling and can’t interact in both JS is used for interaction of user with website to get response.
- 5. In HTML aftersubmitting form we get no response why? has the user filled in all required fields? has the user entered a valid date? has the user entered text in a numeric field? Validation of Data Because HTML does not create interaction of user with Data Base. Java Script is used to create a useful interaction.
- 6. <html> </html> <head> <body> <script> </body> </script> </head> document.write("hi!<br> I amAhmad Yaqoob <br> I love Astronology")
- 7. Where can weuse script tag 1: In the body section <html> </html> <body> <script> </body> </script> document.write("hi!<br> I am Ahmad Yaqoob <br> I love Astronology")
- 8. Where can weuse script tag 2: In the Head section <html> </html> <body> <script> </body> </script> document.write("hi!<br> I am Ahmad Yaqoob <br> I love Astronology") <head> </head>
- 9. Where can weuse script tag External JavaScript <html> <head> <script src="external.js"></script> </head> <body></body> </html> document.write("hi!<br> I am Ahmad Yaqoob <br> I love Astronology") .js .html
- 10. External JavaScript Advantages PlacingJavaScript's in external files has some advantages: •It separates HTML and code •It makes HTML and JavaScript easier to read and maintain •Cached JavaScript files can speed up page loads •If identical code is used on several pages of a website, external JavaScript files are beneficial.