Kenneth Lum - DEV Community

Kenneth Lum

May 23

async / await concepts

#javascript #async #await #asynchronous

3 min read

Kenneth Lum

Feb 23

Editing and using a command quite some time ago on Bash

#bash #zsh #history

1 min read

Kenneth Lum

May 8 '21

Understanding what a Blob is

#javascript #blob

8

3 min read

Kenneth Lum

Apr 5 '21

Automatically re-render the page when we save the file in the code editor

6

1

1 min read

Kenneth Lum

Apr 2 '21

To tell what the web server is, right inside of a webpage

#webdev #http #webserver

6

1 min read

Kenneth Lum

Mar 31 '21

Building a simple slideshow component in React using Hooks

#react #slideshow #hooks

9

2 min read

Kenneth Lum

Mar 26 '21

Using React in JSFiddle, Coderpad, or just an HTML page

#react #coderpad #interview #webdev

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2 min read

Kenneth Lum

Mar 20 '21

Caching a function instead of something "expensive" using useCallback() in React

#react #webdev #tutorial #reacthooks

6

2 min read

Kenneth Lum

Mar 19 '21

Seeing useMemo() speeds up our webpage

#webdev #tutorial #react #usememo

5

2 min read

Kenneth Lum

Mar 17 '21

The two general patterns of useEffect() in React Hooks

#react #webdev #tutorial

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1

2 min read

Kenneth Lum

Mar 15 '21

Important concepts of ES6 Promises

#promise #es6 #webdev #javascript

1

3 min read

Kenneth Lum

Mar 15 '21

How to ignore previous AJAX responses when using React Hooks

#webdev #ajax #fetch #raceconditions

6

3 min read

Kenneth Lum

Mar 14 '21

Making the network slower when debugging the webpage UI

#webdev #debugging

1

1 min read

Kenneth Lum

Mar 13 '21

Whenever we see (d) => setData(d), what can we think about?

#javascript #react #webdev

1

10

2 min read

Kenneth Lum

Mar 11 '21

How to do some short commands inside of Visual Studio Code

#vscode #bash #terminal

1

1 min read

Kenneth Lum

Mar 11 '21

To grep for a word and its adjacent characters

#linux #macos #unix #bash

8

1 min read

Kenneth Lum

Mar 11 '21

Prettier — a pretty good beautifier / auto-formatter for JavaScript and HTML

#autoformat #autoindent #beautifier #webdev

1 min read

Kenneth Lum

Mar 8 '21

useSpriteAnimation() like how Facebook does it using React Hooks

#react #hooks #sprite #webdev

5

1 min read

Kenneth Lum

Mar 8 '21

The declarative spirits of React Hooks

#react #javascript #webdev #hooks

6

2 min read

Kenneth Lum

Mar 4 '21

Having fun with React Custom Hooks

#react #hooks #webdev

5

3 min read

Kenneth Lum

Mar 2 '21

Auto repeat requestAnimationFrame()

6

1 min read

Kenneth Lum

Feb 28 '21

JavaScript requestAnimationFrame() simplified

#javascript #asynchronous #webdev

7

3 min read

Kenneth Lum

Feb 19 '21

We can use the dataset property with the `data-` attribute

#javascript #html #dataset #webdev

1

1 min read

Kenneth Lum

Feb 15 '21

Using CSS Animation

#css #cssanimation #transition #webdev

2 min read

Kenneth Lum

Jan 7 '21

What are the types of module in JavaScript?

1 min read

Kenneth Lum

Nov 29 '20

Super quick way to set up opendiff or Perforce p4merge as git diff

#git #diff

1 min read

Kenneth Lum

Nov 15 '20

To diff two files side by side, without opendiff, Microsoft Visual Studio Code, Perforce diff works too

#diff

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1

1 min read

Kenneth Lum

Nov 14 '20

If you need emacs on macOS Catalina or Big Sur

#emacs #macos #catalina #bigsur

4

10

1 min read

Kenneth Lum

May 5 '20

Silence the errors in Bash or Zsh

#bash #zsh #unix

6

1 min read

Kenneth Lum

Apr 8 '20

A 5-minute guide to using tmux

#tmux #ssh #bash #wfh

7

2 min read

Kenneth Lum

Apr 4 '20

What is a good rule of thumb to write dependencies in package.json or Gemfile, and semantic versioning

#npm #bundle #gemfile #webdev

1

2 min read

Kenneth Lum

Mar 25 '20

The difference between partitioning an array and partitioning an array in Quicksort

#algorithms

7

3 min read

Kenneth Lum

Mar 23 '20

Two things to immediately take note of when using JavaScript's array sort() method

#javascript

7

1 min read

Kenneth Lum

Mar 21 '20

There are 9 falsy values in JavaScript inside of a browser. Can you name them all?

#javascript

49

10

2 min read

Kenneth Lum

Mar 18 '20

What does (a == null) mean in JavaScript

#javascript

6

2 min read

Kenneth Lum

Mar 15 '20

Understanding how to use Redux using React Hooks in 5 minutes

#react #redux #hooks

9

2 min read

Kenneth Lum

Mar 11 '20

How to remember JavaScript's shift() and unshift() ?

#javascript

5

1

1 min read

Kenneth Lum

Feb 27 '20

Understanding redux-thunk in 5 minutes

#reduxthunk #redux #react #thunk

11

2 min read

Kenneth Lum

Feb 23 '20

How to exclude long lines in your grep results?

#grep #bash #unix

5

2 min read

Kenneth Lum

Feb 23 '20

Why ReactJS using Object.is() for comparison is better than using `===`

#react #javascript

14

2 min read

Kenneth Lum

Feb 23 '20

In JavaScript or PCRE regular expression, you have to specify a `0` for a minimum quantity

#javascript #pcre #regularexpression

7

1 min read

Kenneth Lum

Feb 23 '20

How does JavaScript's Object.is() work?

#javascript

13

1 min read

Kenneth Lum

Feb 23 '20

How to remember the `m` and `s` modifier for a regular expression in JavaScript?

#javascript #regex #regularexpression #pcre

7

4 min read

Kenneth Lum

Feb 22 '20

The useMemo() hook in ReactJS has a short memory

#react #hooks

6

1 min read

Three Year Club

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