class04.md

clas04

Chapter 4: Ch.4 “Links” (pp.74-93)

• The definition list is created with the

  element and usually consists of a series of terms and their definitions. Inside the

  element you will usually see pairs of

  and

elements.

This is used to contain the term being defined (the definition term).

This is used to contain the definition. Sometimes you might see a list where there are two terms used for the same definition or two different definitions for the same term

• Ordered lists use numbers.
• Unordered lists use bullets.
• Definition lists are used to define terminology.

Links are created using the element which has an attribute called href. The value of the href attribute is the page that you want people to go to when they click on the link.

mailto To create a link that starts up the user's email program and addresses an email to a specified email address, you use the element.

Chapter 15: “Layout” (pp.358-404)

Block-level boxes start on a new line and act as the main building blocks of any layout, while inline boxes flow between surrounding text. You can control how much space each box takes up by setting the width of the boxes (and sometimes the height, too). To separate boxes, you can use borders, margins, padding, and background colors.

If one block-level element sits inside another block-level element then the outer box is known as the containing or parent element

Normal flow Every block-level element appears on a new line, causing each item to appear lower down the page than the previous one. Even if you specify the width of the boxes and there is space for two elements to sit side-by�side, they will not appear next to each other.

Relative Positioning This moves an element from the position it would be in normal flow, shifting it to the top, right, bottom, or left of where it would have been placed. This does not affect the position of surrounding elements

Absolute positioning This positions the element in relation to its containing element. It is taken out of normal flow, meaning that it does not affect the position of any surrounding elements

Fixed Positioning Elements with fixed positioning do not affect the position of surrounding elements and they do not move when the user scrolls up or down the page.

Floating Elements Floating an element allows you to take that element out of normal flow and position it to the far left or right of a containing box.

Chapter 3 (first part): “Functions, Methods, and Objects”

• Variables are used to temporarily store pieces of information used in the script.

• Arrays are special types of variables that store more than one piece of related information.

• JavaScript distinguishes between numbers (0-9), strings (text), and Boolean values (true or false).

Functions let you group a series of statements together to perform a specific task. If different parts of a script repeat the same task, you can reuse the function (rather than repeating the same set of statements).

If you are going to ask the function to perform its task later, you need to give your function a name . They do not have a should describe the task it is When you write a function and name, so they cannot be called. performing

When you write a function and you expect it to provide you with an answer, the response is known as a return value.

“6 Reasons for Pair Programming”

pair programming commonly involves two roles: the Driver and the Navigator. The Driver is the programmer who is typing and the only one whose hands are on the keyboard. Handling the “mechanics” of coding, the Driver manages the text editor, switching files, version control, and—of course writing—code. The Navigator uses their words to guide the Driver but does not provide any direct input to the computer. The Navigator thinks about the big picture, what comes next, how an algorithm might be converted in to code, while scanning for typos or bugs.

Pair programming touches on all four skills: developers explain out loud what the code should do, listen to others’ guidance, read code that others have written, and write code themselves.

• Greater efficiency

So, in the long-run, it’s often actually more efficient than two people working on separate features. When coming up with ideas and discussing solutions out loud, two programmers may come to a solution faster than one programmer on their own. Also, when the pair is stuck, both programmers can research the problem and reach a solution faster

• Engaged collaboration

When two programmers focus on the same code, the experience is more engaging and both programmers are more focused than if they were working alone. It is harder to procrastinate or get off track when someone else is relying on you to complete the work.

• Learning from fellow students

he developers in a pairing have different skill sets. If one programmer is more experienced in a certain skill, they can teach a student who is less familiar with that area. The less experienced developer benefits from the experienced developer’s knowledge and guidance, and the latter benefits from explaining the topic in their own words

• Social skills

Pair programming not only improves programming skills, but can also help programmers develop their interpersonal skills.

• Job interview readiness

  For most roles, the ability to work with and learn from others and stellar communication skills are as (or more!) important to a company than specific technical skills. Pair programming strengthens all of those skills.

• Work environment readiness

Many companies that utilize pair programing expect to train fresh hires from CS-degree programs on how they operate to actually deliver a product.