Capella IT3215 Unit 2 Discussion (dq1+dq2) Latest 2019 March Question # 00601410 Course Code : IT3215 Subject: Computer Science Due on: 05/16/2019 Posted On: 05/16/2019 07:17 AM Tutorials: 0 Rating: 5.0/5

IT3215 Introduction to JavaScript

Unit 02 Discussion

DQ1 Arrays,
Loops, and the DOM

You have
learned about working with the DOM with CSS, but you can also work with the DOM
using JavaScript. You will be able to alter and manipulate the DOM dynamically
with JavaScript to extend basic JavaScript functionality by using loops,
events, controls, arrays, and functions. 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
arrays and loops be utilized effectively together versus separate variable
declarations.

Describe
the flow of control for while, do-while, and for loops.

Describe
the use of a JavaScript array, including the use of its index and length
property.

Describe
these methods for working with forms and controls: submit, reset, focus, blur.

Describe
the use of the Document Object Model in JavaScript applications.

Describe
these events for working with controls: onfocus, onblur, onclick, ondblclick,
onchange, onselect.

Describe
the process of creating and adding nodes to the DOM, including adding rows and
cells to a DOM table.

Distinguish
between a function expression and a function declaration, including which one can
be called before it is defined.

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.

Learning
Components

This
activity will help you achieve the following learning components:

Understand
how to dynamically add HTML elements to an existing page by manipulating the
DOM.

Examine
when arrays are utilized.

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

Know the
difference between an array and a variable.

Understand
the different types of loops.

Resources

Discussion
Participation Scoring Guide.

Toggle
Drawer

DQ2 Challenges
to Arrays and Loops

Note: The
second discussion in each unit of this course is dedicated to community sharing
of challenges and solutions you have 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 arrays and loops can be challenging. 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 the assignment this week. 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 them address
their challenges.