Week06

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TOC

Prog 272 Week 06, 2014

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Overview

This week we want to focus on:

Programs to look At

For parsing HTML

For working with modules:

For working with Routes:

Globals

function foo() {
  var number01 = 0;
  number02 = 0; 
}

In this example, number01 is not a global variable, but number02 is global. That is, it is part of window: window.number02.

JSHint is designed to help you catch problems like this, particularly if you turn on strict mode. In fact, in strict mode, many browsers will through a ReferenceError if number02 is not defined.

Module Pattern

The module pattern pattern

More on functions, methods and constructors.

More on passing functions as a parameter.

Global Abatement

var MyApp = {};
MyApp.InitCordova = (function() { } )();
MyApp.ShowDirectories = (function() { } )();

There are also tools like AMD modules used with RequireJS or Dojo. We are not going to cover them in this part of this course.

MongoDb Notes

These are all on Elvenware

Notes

Reply in conversations in the appropriate assignment, not just as a general comment.

It's JavaScript first, jQuery second. jQuery is a library built on top of JavaScript. No matter how good the library, it is the language that is primary.

Working with Input and Select Controls

Variable Declarations

Regardless of where you declare a var statement, it will be moved by the compiler to the top of the method (or scope) in which it is declared:

function run() {    
    var x = 0;    
    x = 2 + 3;    
    var firstName = "Tom";    
    var lastName = "Fielding";
}

The var statements are hoisted, and this becomes:

function run() {   
    var x = 0;   
    var firstName;   
    var lastName;
    x = 2 + 3;
}

Separate HTML, CSS and JavaScript

We want to be sure to put:

A few additional details are found here:

More on ADB

We generally use ADB to connect to our AndroidX86 instances:

adb connect 192.168.XX.XX

However, you can use ADB for a lot more than just establishing a connection. For instance, ou can install a compiled Android program (an APK), you can copy files to your device, and start a shell session on the device. That is like opening the commannd prompt on the device, but you can do it from the Windows command prompt. For more details, see here:

Install Linux

Just a reminder that there is some information here on installing Linux. This is just an fyi, just information that you might find useful:

Nothing you have to do here, these are just links you might be interested in seeing:

Written in part with StackEdit.