swyxio

2019 update: this essay has been updated on my personal site, together with a followup on how to get started

2020 update: I'm now writing a book with updated versions of all these essays and 35 other chapters!!!!

1. Learn in public

If there's a golden rule, it's this one, so I put it first. All the other rules are more or less elaborations of this rule #1.

You already know that you will never be done learning. But most people "learn in private", and lurk. They consume content without creating any themselves. Again, that's fine, but we're here to talk about being in the top quintile. What you do here is to have a habit of creating learning exhaust. Write blogs and tutorials and cheatsheets. Speak at meetups and conferences. Ask and answer things on Stackoverflow or Reddit. (Avoid the walled gardens like Slack and Discourse, they're not public). Make Youtube videos

dommmel

var slackTeam = "YOUR_SLACK_TEAM_NAME ";
var token = 'YOUR_ADMIN_TEST_TOKEN'; 
// A test token will suffice.
// You can generate one at https://api.slack.com/docs/oauth-test-tokens
// Just make sure that the user issuing the test token is an admin.

var url = 'https://'+ slackTeam + '.slack.com/api/users.admin.invite';
fetch(url, { 
  method: 'POST',
  headers: {'Content-Type': 'application/x-www-form-urlencoded'},

martincarlin87

var gulp = require('gulp');
var gutil  = require('gulp-util');
var argv   = require('minimist')(process.argv);
var prompt = require('gulp-prompt');
var rsync  = require('gulp-rsync');
var sass = require('gulp-sass');
var autoprefixer = require('gulp-autoprefixer');
var sourcemaps = require('gulp-sourcemaps');
var browserSync = require('browser-sync');
var useref = require('gulp-useref');

zulhfreelancer

It's important to note that running this reset will drop any existing data you have in the application

How to reset PG Database on Heroku?

• Step 1: heroku restart
• Step 2: heroku pg:reset DATABASE (no need to change the DATABASE)
• Step 3: heroku run rake db:migrate
• Step 4: heroku run rake db:seed (if you have seed)

One liner

vasanthk

System Design Cheatsheet

Picking the right architecture = Picking the right battles + Managing trade-offs

Basic Steps

1. Clarify and agree on the scope of the system

• User cases (description of sequences of events that, taken together, lead to a system doing something useful)
  • Who is going to use it?
  • How are they going to use it?

dandelany

var RecursiveChildComponent = React.createClass({
  render() {
    return <div>
      {this.recursiveCloneChildren(this.props.children)}
    </div>
  },
  recursiveCloneChildren(children) {
    return React.Children.map(children, child => {
      if(!_.isObject(child)) return child;
      var childProps = {someNew: "propToAdd"};

ericchen

var LatLngList = new Array (new google.maps.LatLng (52.537,-2.061), new google.maps.LatLng (52.564,-2.017));
//  Create a new viewpoint bound
var bounds = new google.maps.LatLngBounds ();
//  Go through each...
for (var i = 0, LtLgLen = LatLngList.length; i < LtLgLen; i++) {
  //  And increase the bounds to take this point
  bounds.extend (LatLngList[i]);
}
//  Fit these bounds to the map
map.fitBounds (bounds);