mhkeller

http://dhmontgomery.com/files/lccsnippets.html#12

mhkeller

const { Pool } = require('pg');
const connectionString = require('./connection-string.json');

const pool = new Pool(connectionString);

async function main () {
	const x = await pool.query('Select count(*) from my_table');
	console.log(x.rows);
}

mhkeller

async function downloadPage (matches) {
	for (let match of matches) {
		const requestUrl = `tktk`;
		const html = await wget(requestUrl);
  }
}

async function wget (requestUrl) {
	return new Promise((resolve, reject) => {
		const cmd = `wget -q -O - '${requestUrl}'`;

mhkeller

If you have any tips or areas to discuss, you can get in touch a few different ways:

• Keybase
  • https://keybase.io/mhkeller
• Email
  • mhkeller@nytimes.com (note: michael.keller@nytimes is not me so please don't send him email)
• Phone
  • (212) 556-7148
• NY Times tips page

• https://nytimes.com/tips

mhkeller

\copy (SELECT * FROM persons) to 'C:\tmp\persons_client.csv' with (format csv, header)

mhkeller

const wait = ms => new Promise(f => setTimeout(f, ms));
// wait(500)

mhkeller

When creating a polylinear time scale, the tricky part is to know to which value in the range the intermediate dates should map.

Let's say we want to "zoom in" on 4 particular days and make them appear with the size of 10 days each. Because these days now take up more space (36 or (factor - 1) * n), we need to create a linear time scale where the domain ends at 36 days later than we want to show. This scale is then used to determine the intermediary range values of the polylinear scale.

mhkeller

import { Pool } from 'pg';

export default function db (connectionString) {
	const pool = new Pool(connectionString);

	pool.on('error', err => {
		console.error(err);
	});

	return pool;

mhkeller

<h1 style="opacity: 0.25;{color}">Hello {name}!</h1>

<script>
export default {
	data () {
		return {
			color: 'color: #fc0;'
		}
	}
}

mhkeller

# Adapted from https://unix.stackexchange.com/questions/60577/concatenate-multiple-files-with-same-header#170692
# `head -1` gets first line of the file of the file and stashes them as the header row into `all.txt`
# `tail -n +2 -q *.csv >> all.txt` grabs every csv file from the second row down and stashes them into `all.txt`
# `all.txt` is a csv file but we use the txt extension to avoid it being captured in the `*.csv` glob. 
# You could also output to a csv file by having your input files share a naming convention such as `file-001.csv` and glob on `file*.csv` 
# But renaming `all.txt` to `all.csv` is sometimes easier than worrying about a naming convention and txt and csvs are the same thing

head -1 my-csv-01.csv > all.txt; tail -n +2 -q *.csv >> all.txt