Nicolas Gryman ngryman

How to write good Pseudocode

This is an unfinished list of remarks on how to write good pseudocode.

What is pseudocode?

Pseudocode is a loosely defined way of transmitting the concept of an algorithm from a writer to a reader. Central is the efficiency of this communication, not the interpretability of the code by an automated program (e.g., a parser).

The standard names for indexes in PostgreSQL are:

{tablename}_{columnname(s)}_{suffix}

where the suffix is one of the following:

pkey for a Primary Key constraint;

key for a Unique constraint;

excl for an Exclusion constraint;

idx for any other kind of index;

What forces layout / reflow

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.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

Repository Title Goes Here

INSERT GRAPHIC HERE (include hyperlink in image)

Subtitle or Short Description Goes Here

ideally one sentence >

Use these rapid keyboard shortcuts to control the GitHub Atom text editor on macOS.

Key to the Keys

⌘ : Command key
⌃ : Control key
⌫ : Delete key
← : Left arrow key
→ : Right arrow key
↑ : Up arrow key

	FROM alpine

	RUN apk add --update --no-cache nodejs
	RUN npm i -g yarn

	ADD package.json yarn.lock /tmp/
	ADD .yarn-cache.tgz /

	RUN cd /tmp && yarn
	RUN mkdir -p /service && cd /service && ln -s /tmp/node_modules

	@function up-to($list, $index) {
	$l: ();
	@each $e in $list {
	@if length($l) < $index {
	$l: append($l, $e, list-separator($list));
	}
	}
	@return $l;
	}

	#!/usr/bin/env bash

	# Colours picked from https://robinpowered.com/blog/best-practice-system-for-organizing-and-tagging-github-issues/

	###
	# Label definitions
	###
	declare -A LABELS

	# Platform

	/**
	* Fancy ID generator that creates 20-character string identifiers with the following properties:
	*
	* 1. They're based on timestamp so that they sort after any existing ids.
	* 2. They contain 72-bits of random data after the timestamp so that IDs won't collide with other clients' IDs.
	* 3. They sort lexicographically (so the timestamp is converted to characters that will sort properly).
	* 4. They're monotonically increasing. Even if you generate more than one in the same timestamp, the
	* latter ones will sort after the former ones. We do this by using the previous random bits
	* but "incrementing" them by 1 (only in the case of a timestamp collision).
	*/