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7/28/2019 jvscript free

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Prepared by: Glodelyn D. Ocfemia

COM153 Active Scripting


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Course Objectives

At the end of the course, students should

be able to:

Understand what JavaScript can and

cannot do

Understand where JavaScript fits within awebpage.

Apply by developing webpages using

javascript programming


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Orientation

Tell something about SELF

Classroom policies,

Grading system Library Visits


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Classroom ground

rules1.Attendance and Attire2.Three-second rule

3.Class Preparation

4.Class Participation

5.Meeting Deadlines

6.Cheating and Plagiarism7.Cell phones, laptops, etc

8.Responsibility for classes missed

9.No special quizzes or machine


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Grading System

AttendanceQuizzes

Laboratory Exercises

Seatwork

Recitation

Assignments

Major Exams

Final Project


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Library Visits

Ice breaker

1. Think of a number from 1 to 10Multiply that

number by 9 If the number is a 2-digit number,

add the digits togetherNow subtract 5Determine

which letter in the alphabet corresponds to the

number you ended up with (example: 1=a, 2=b,

3=c,etc.)

2. Think of a country that starts with that letter

Remember the last letter of the name of that

country

3. Think of the name of an animal that starts with

that letter.Remember the last letter in the nameof that animal


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Session Objectives

At the end of this session, students should be

able to:

understand the history of JavaScript

differentiate JavaScript between Java list of what is it used of JavaScript today

understand what JavaScript can and cannot

do. demonstrate the simple code in JavaScript


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Differences between the Java and

JavaScript

Java is an OOP programming

language while Java Script is an OOP

scripting language. Java creates applications that run in a

virtual machine or browser while

JavaScript code is run on a browseronly.

Java code needs to be compiled while

JavaScript code are all in text.


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Introduction of JavaScript

NOT Java

JavaScript was developed by

Netscape

- developed by Brendan Eich

Java was developed by Sun

Designed to plug a gap in the

techniques available for creating web-

pages

Client-side dynamic content


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What is it used for today? Handling User Interaction

Doing small calculations

Checking for accuracy and appropriateness of data

entry from

forms Doing small calculations/manipulations of forms input

data

Search a small databased embedded in the

downloaded page

Save data as cookie so it is there upon visiting the

page

Generating Dynamic HTML documents


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javascript:alert("Hello World");


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How to enable Javascript

Internet Explorer for Windows Go to the 'Tools' menu and choose 'Internet Options'.

Next, click the 'Security' tab. Make sure the 'Internet Zone' is highlighted andpress the 'Custom Level' button to open the security options.

Look for the entry near the bottom of the list which says 'Scripting', then 'ActiveScripting' and make sure it is enabled.

Safari for Mac

Go to the Safari menu and choose 'Preferences'.

Click on the 'Security' button and ensure that the 'Enable JavaScript' option isticked.

Firefox

Firefox users should go to the 'Tools' menu and select 'Options'.

Next click 'Web Features'. Check 'Enable Javascript' in the main panel and press

OK. .DOM Document Object Model - defines the DOM as a platform- and

language-neutral interface that allows programs and scripts to dynamicallyaccess and update the content, structure, and style of documents.What thismeans for you is that you can work with a specification to which webbrowsersadhere to develop a webpage in a dynamic manner. The DOM createsa tree structure forHTML and Extensible Markup Language (XML) documentsand enables scripting of thoseobjects.


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Assignment

Create your own webpages using HTML due nextmeeting

Documents

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