Chukwuma Nwaugha nwaughachukwuma

My Elasticsearch cheatsheet with example usage via rest api (still a work-in-progress)

Shortlinks:

Cluster Health
- Index Level
- Shard Level
Nodes Overview
Indices Overview
Cluster Maintenance

ANSI Escape Sequences

Standard escape codes are prefixed with Escape:

Ctrl-Key: ^[
Octal: \033
Unicode: \u001b
Hexadecimal: \x1B
Decimal: 27

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.

Effective Engineer - Notes

By Edmond Lau
Highly Recommended 👍
http://www.theeffectiveengineer.com/

What's an Effective Engineer?

type below:

brew update
brew install redis

To have launchd start redis now and restart at login:

brew services start redis

	// See compatibility table for .toBlob() Method
	// https://developer.mozilla.org/en-US/docs/Web/API/HTMLCanvasElement/toBlob#browser_compatibility

	interface Option {
	type: 'image/jpeg' \| 'image/png' \| 'image/webp' \| 'image/bmp' \| 'image/gif';
	quality?: number;
	}

	async function compressImage(file: File, option: Option) {
	if (!file.type.startsWith('image')) {

	// INCOMPLETE

	// This command will give you list of available FFMPEG formats and their default Mime types
	// ffmpeg -formats -hide_banner \| tail -n +5 \| cut -c5- \| cut -d' ' -f1 \| xargs -i{} ffmpeg -hide_banner -h demuxer={} \| pcregrep -o2 -o4 -M '(Muxer (\w+) )\|(Mime type:( .*).)'
	// And then parse the output with regex to JSON format in JavaScript for example:
	// str.match(/(.)\n (.)/gm).map(m => `"${m.replace(/\n /, '": "')}"`).join(',\n');

	// Combine the output with MDN - Common MIME types
	// https://developer.mozilla.org/en-US/docs/Web/HTTP/Basics_of_HTTP/MIME_types/Common_types
	// And with IANA:

	<?
	use Illuminate\Database\Eloquent\Model;
	class User extends Model
	{
	public function photos()
	{
	return $this->hasMany('\App\Photo');
	}
	public function posts()
	{

	var cloudinary = require('cloudinary').v2;

	cloudinary.config({
	cloud_name: "<CLOUD NAME>",
	api_key: "<API KEY>",
	api_secret: "<API SECRET>"
	});

	var result = [];
	var options = { type: "upload", max_results: 500, prefix: "<Name of the Folder>/" }; //Add you folder name + `/`

	<?php

	// Add to your (child) theme's functions.php

	add_filter( 'facetwp_render_params', function( $params ) {
	foreach ( $params['facets'] as $key => $facet ) {
	if ( 'keywords' == $facet['facet_name'] ) { // change "keywords" to your actual facet name
	if ( empty( $facet['selected_values'] ) ) {
	$params['facets'][ $key ]['selected_values'] = 'circ';
	}

	/* Implementation of lodash.get function */
	function getProp( object, keys, defaultVal ){
	keys = Array.isArray( keys )? keys : keys.split('.');
	object = object[keys[0]];
	if( object && keys.length>1 ){
	return getProp( object, keys.slice(1) );
	}
	return object === undefined? defaultVal : object;
	}