Question IT3215 Introduction to JavaScript

IT3215 Introduction to JavaScript

Unit 01 Discussion

DQ1 Getting Started With JavaScript

JavaScript has been one of the most popular scripting languages for dynamic interactivity. It is a completely different language from HTML5 and CSS3, and it can be challenging for those without programming experience to begin. Research and describe some tips for someone new to JavaScript to get started. In particular, focus on at least two of the following points while providing sample code (with comments) for each:

Explain how different browsers handle JavaScript code. What considerations must be made when developing for different browsers?

Describe the use of JavaScript comments, including the process of “commenting out” portions of JavaScript code.

Explain the primary rules for creating a JavaScript identifier.

Explain the use of variable declarations and assignment statements with numeric, string, and Boolean data.

Explain the syntax for referring to a method or property of an object.

Explain the issue of cross-browser compatibility as it relates to JavaScript code.

Describe the creation and use of event handlers, including an event handler for the load event of the window object and how the HTML and JavaScript sections work together using the DOM.

Describe how the process flow for form submissions works between HTML, JavaScript, and a server-side language like PHP.

Response Guidelines

Comment on the post of at least two other learners. Offer insights, solutions, examples, or opinions that add depth and value to the conversation.

Note regarding discussions in this course: The discussion topic should determine the length of your post, however, a minimum of 150 words is recommended. Refer to the Discussion Participation Scoring Guide for post expectations. Make your initial posts by Wednesday to allow time sufficient for peers to respond. The expectation within the course discussions is to respond to at least two posts by the end of the unit, but it is highly recommended that you extend the dialog further. Responding over multiple days will help stimulate a lively discussion.

Learning Components

This activity will help you achieve the following learning components:

Study the different variable data types.

Examine the process flow of form submissions.

Understand the basic concepts of the DOM and how HTML and the JavaScript sections of the DOM work together.

View examples of effective JavaScript comments that describe and explain variables and functions.

Resources

Discussion Participation Scoring Guide.

Toggle Drawer

DQ2 Challenges to Using Variables in a Form

Note: The second discussion in each unit of this course is dedicated to community sharing of challenges and solutions encountered while completing your weekly assignment. You are encouraged to post and respond early in the week to share experiences that you are having, and to help others with theirs. This is how coders solve tough issues: they rely on one another!

Creating and employing variables for the first time can be tricky. Putting them in a form can make it even tougher. For some it is very intuitive; for others, less so.

Discuss one or more of the challenges or experiences that you encountered when trying to complete this week’s assignment. How did you try to address it or solve it?

Response Guidelines

Comment on the post of at least two other learners. Share suggestions to help your fellow learners address their challenges.

Resources

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