Pyongwon Lee

[JavaScript] Events

Events and handlers are the basic programming model of JavaScript in web browsers. JavaScript has been evolved to provide native support for handling events, and all modern browsers support the features.

[JavaScript] Functions

In JavaScript, a function is really a unique feature. In general, you can use it as a global module. Define it and use it anywhere you want. But JavaScript functions are much more than that. Let’s find out what they are.

[React] Props & States

React passes data between components through States and Props.

Props are read-only data that are passed from one component to another. States represent data that change over time. States can only be used in Class components, not in Function components.

[React] JSX &Components

React is, in short, nothing but creating UI components. You can use the JavaScript function syntax, but, in general, you are going to use JSX (JavaScript XML) syntax. JSX is a syntax extension to JavaScript. Finally, let’s check the lifecycle of React.

[React] Overview & Setup

React is a JavaScript library that is created by Facebook in 2011 in order to create a component in web applications(React DOM). It has expanded to other systems, such as mobile apps (React Native) or virtual reality (React VR).

[JavaScript] Script & Types

This post deals with basic JavaScript features: Types, Values, and Scripting.

[JavaScript] Overview

JavaScript is the de-facto standard scripting language for the web. It has had ups and downs (loved and hated) in its history, though. With the advent of AJAX and HTML5, JavaScript becomes a must for all web developers.

[AWS – Python] S3 with Boto 3

Here are examples of accessing S3 with Boto 3.