You can use the diff language tag to generate some colored text:
- text in red
+ text in green
! text in orange
# text in gray
@@ text in purple (and bold)@@
open Belt | |
let {then, thenResolve, catch, resolve, reject} = module(Promise) | |
module PgResult = { | |
module FieldInfo = { | |
type t = private { | |
name: string, | |
dataTypeId: string, | |
} |
I was drawn to programming, science, technology and science fiction | |
ever since I was a little kid. I can't say it's because I wanted to | |
make the world a better place. Not really. I was simply drawn to it | |
because I was drawn to it. Writing programs was fun. Figuring out how | |
nature works was fascinating. Science fiction felt like a grand | |
adventure. | |
Then I started a software company and poured every ounce of energy | |
into it. It failed. That hurt, but that part is ok. I made a lot of | |
mistakes and learned from them. This experience made me much, much |
To me, legacy code is simply code without tests. I’ve gotten some grief for this definition. What do tests have to do with whether code is bad? To me, the answer is straightforward, and it is a point that I elaborate throughout the book: Code without tests is bad code. It doesn’t matter how well written it is; it doesn’t matter how pretty or object-oriented or well-encapsulated it is. With tests, we can change the behavior of our code quickly and verifiably. Without them, we really don’t know if our code is getting better or worse.
Four Reasons to Change Software: For simplicity’s sake, let’s look at four primary reasons to change software.
export default function keducer(prefix, actionMutationMap={}) { | |
return (state={}, action) => { | |
return actionMutationMap[action.type] ? | |
actionMutationMap[action.type](state, action.payload) : | |
action.type.indexOf(`${prefix}.`) === 0 ? {…state, …(action.payload)} : state | |
; | |
}; | |
} |
FWIW: I (@rondy) am not the creator of the content shared here, which is an excerpt from Edmond Lau's book. I simply copied and pasted it from another location and saved it as a personal note, before it gained popularity on news.ycombinator.com. Unfortunately, I cannot recall the exact origin of the original source, nor was I able to find the author's name, so I am can't provide the appropriate credits.
git branch | grep -v "master\|develop\|release" | xargs git branch -D |
const I = x => x | |
const K = x => y => x | |
const A = f => x => f (x) | |
const T = x => f => f (x) | |
const W = f => x => f (x) (x) | |
const C = f => y => x => f (x) (y) | |
const B = f => g => x => f (g (x)) | |
const S = f => g => x => f (x) (g (x)) | |
const S_ = f => g => x => f (g (x)) (x) | |
const S2 = f => g => h => x => f (g (x)) (h (x)) |
All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.
Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
#!/bin/bash | |
# Stop all containers | |
containers=`docker ps -a -q` | |
if [ -n "$containers" ] ; then | |
docker stop $containers | |
fi | |
# Delete all containers | |
containers=`docker ps -a -q` | |
if [ -n "$containers" ]; then | |
docker rm -f -v $containers |