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Model-View-Controller (MVC) and AJAX

Model-View-Controller (MVC) and AJAX

memorize.ai

memorize.ai (lvl 286)

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AJAX

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Last updated

6 years ago

Date created

Mar 1, 2020

Cards (5)

Section 1

(5 cards)

AJAX

Front

Asynchronous JavaScript and XML

Back

What are the two key building blocks of AJAX applications?

Front

1. JavaScript: Allows running complex code inside a browser to make the page "dynamic" 2. Document Object Model (DOM): * Tree-based representation of HTML document * JavaScript program can manipulate different parts of the DOM to make changes on the page * JavaScript program can monitor "events" on the DOM, like clicking certain part of the page

Back

Event-driven programming

Front

Control flow is driven by events. Programmer specifies mapping from events to actions.

Back

What mechanism is needed to support AJAX?

Front

Dynamic in-place page update mechanism

Back

Four layers of a website

Front

Encryption layer: encrypted transport HTTP layer: interpret request and serve response Application layer: generate dynamic content Storage/Data layer: store and retrieve data

Back