邹明潮 AngularJS Promise

Promise

Promise is an attempt to address the problems caused by callback. It bundles the future results of an asynchronous call into an object. AngularJS Promise is implemented by pairs of deferred and promise objects that are made of a promise chain, and the…

邹明潮 Notes: YDKJS Prototype

Prototype

[[Prototype]]

• Function: all…

邹明潮 Notes: YDKJS Scope & Closure

Scope

Scope is the set of rules that determines where and how a variable (identifier) can be looked up.

Lexical Scope

邹明潮 Notes: YDKJS Promise

JavaScript

JavaScript is a single-threaded, non-blocking, asynchronous and concurrent language, because DOM-tree is not thread-safe.

• All our JavaScript code should run in the same execution context such as stack

邹明潮 Notes: YDKJS this

What this?

When a function is invoked, an execution context is created. This includes information about where the function was called from(call-stack), how the function was invoked(call-site), what parameters were passed and what this reference was bound to.

邹明潮 Angular Scope

Scope

Scope is one of fundamental building blocks in the Angular1.x framework. Its main purposes are the followings: sharing data, broadcasting and listening events, and watching for changes in data. Poking around the source code of the scope assists me in having a…

邹明潮 Notes: YDKJS UP & GOING

Executing a Program

1. Compiled Language like C++ and Java. First complies the program into machine-language instructions, then executes the complied instructions.
2. Interpreted Language such as Python. Runs the program…

邹明潮 Angular Dependency Injection

Dependency Injection

Dependency injection is a glue that holds every other components together. It has three different level as the followings are shown:

• Injector

邹明潮 Notes: YDKJS Objects

Syntax

Objects come in two forms: the declarative(literal) form and the constructed form.

var myObj = {
	key: value
};

var myObj = new Object(); // Object.create(null);
myObj.key = value;

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{
  "name": "邹明潮",
  "description": "Learn to code things",
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  "location": "Utica, NY",
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}