nikolayemrikh

git hash-object ./file

# or

git hash-object -t blob

# or

cat ./file | git hash-object --stdin

redblobgames

    const imageData = ctx.getImageData(0, 0, canvas.width, canvas.height);
    const pixels = imageData.data;
    for (let i = 3, n = canvas.width * canvas.height * 4; i < n; i += 4) {
        pixels[i] = pixels[i] < 127? 0 : 255
    }
    ctx.putImageData(imageData, 0, 0);

dndhm

import React, { Component } from 'react';

import FruitContext from './FruitContext';
import FruityComponent from './FruityComponent';

export class App extends Component {
  state = {
    fruit: 'apple',
  }

jayphelps

{
  "scripts": {
    "build": "npm run build:es2015 && npm run build:esm && npm run build:cjs && npm run build:umd && npm run build:umd:min",
    "build:es2015": "tsc --module es2015 --target es2015 --outDir dist/es2015",
    "build:esm": "tsc --module es2015 --target es5 --outDir dist/esm",
    "build:cjs": "tsc --module commonjs --target es5 --outDir dist/cjs",
    "build:umd": "rollup dist/esm/index.js --format umd --name YourLibrary --sourceMap --output dist/umd/yourlibrary.js",
    "build:umd:min": "cd dist/umd && uglifyjs --compress --mangle --source-map --screw-ie8 --comments --o yourlibrary.min.js -- yourlibrary.js && gzip yourlibrary.min.js -c > yourlibrary.min.js.gz",
  }
}

eduncan911

Revert / Undo a Gist Commit

It was not exactly obvious. Here's how to revert a Gist commit!

Checkout the gist like a normal git repo:

# replace the Gist ID with your own
git clone [email protected]:cc13e0fcf2c348cc126f918e4a3917eb.git

Treat it like a normal repo. Edit, force push, etc.

juniorcesarabreu

How do you upload images to a gist?

1. Create a gist or reuse one of your gists.
2. Clone your gist:

git clone https://gist.github.com/<hash>.git

3. Add your image to your gist's repository:

augmt

Detecting similar and identical images using perseptual hashes

Couple of my hobbies are travelling and photography. I love to take pictures and experiment with photography. Usually after my trips, I just copy the photos to either my iPad or couple of my external hard disks. After 10 years, I have over 200K photos distributed across several disks and machines. I had to find a way to organize these photos and create a workflow for future maintenance. In this post I want to address one of the issues I had to solve: ** finding duplicate images **.

First, I needed to find out what exactly is a duplicate image. Analysing my photos, I found couple of interesting things:

1. Identical images: There were multiple copies of the same photo in different directories with different names.
Similar images: I usually bracket (exposure compensate or flash compensate) important pictures. So I have photos that visually appear to be the same, but may be a little darker/lighter based on e

0x263b

Random color from string in javascript

Consider a list of strings you need to permanently assign a random color.

First you should turn the string into a hash.

var string = "string"
var hash = 0

MarianoGnu

tool

extends EditorScript

# ------------------HOW TO USE-------------------------
# CONFIGURE CONSTANTS TO AUTOGENERATE THE TILESET SCENE
# -----------------------------------------------------

# PATH TO TEXTURE FILE

niksumeiko

Disable HTML Form Input Autocomplete and Autofill

1. Add autocomplete="off" onto <form> element;
2. Add hidden <input> with autocomplete="false" as a first children element of the form.

<form autocomplete="off" method="post" action="">
    <input autocomplete="false" name="hidden" type="text" style="display:none;">
    ...