basnijholt

//@version=4
study(title="CTO Line", shorttitle="CTO", overlay=true, resolution="")
smma(src, length) =>
    smma = 0.0
    smma := na(smma[1]) ? sma(src, length) : (smma[1] * (length - 1) + src) / length
    smma
v1 = smma(hl2, 15)
m1 = smma(hl2, 19)
m2 = smma(hl2, 25)
v2 = smma(hl2, 29)

edygar

import * as path from "https://deno.land/std@0.75.0/path/mod.ts";
import * as fs from "https://deno.land/std@0.75.0/fs/mod.ts";
import { paramCase } from "https://deno.land/x/case@v2.1.0/mod.ts";

const cwd = Deno.cwd();

// Files to be excluded during the walk
const skip = (await Deno.readTextFile(path.join(cwd, ".gitignore")))
  .replace(/#.*/g, "")
  .replace(/\s*\n/g, "\n")

ryanflorence

import { useState, useMemo, useEffect } from "react";
import { interpret } from "xstate/lib/interpreter";

export default function useMachine(machine, { log = false } = {}) {
  const [current, setCurrent] = useState(machine.initialState);

  const service = useMemo(() => interpret(machine), []);

  useEffect(() => {
    service.onTransition(setCurrent).start();

kristoferbaxter

export class MyComponent extends React.Component {
  componentWillMount() {
    const styleid = 'MyComponentStyles'
    if (document.head.querySelector(`#${styleid}`) !== null) {
      const styles = document.createElement('style');
      styles.id = styleid;
      styles.append('[foo]{ color: blue; }');
      document.head.appendChild(styles);
    }
  }

threepointone

A series of posts on css-in-js

0. styles as objects

First, an exercise. Can we represent all of css with plain data? Let's try.

let redText = { color: 'red' };

sompylasar

import React, { Component } from 'react';
import PropTypes from 'prop-types';
import { connect } from 'react-redux';

import {
  extractClockTimestamp,
} from './reduxClockReducer';

import {
  ACTION_CLOCK_SUBSCRIBE,

fIa5h

/*
New Relic GPT ad monitoring code
//
This snippet captures PageActions containing references to Google publisher tag ads
Should you have any questions about this, please reach out to me at rmusser@newrelic.com
Please note that you must be using New Relic's SPA browser agent.
//
*/
//
//first, make sure the newrelic object exists properly

wojteklu

Code is clean if it can be understood easily – by everyone on the team. Clean code can be read and enhanced by a developer other than its original author. With understandability comes readability, changeability, extensibility and maintainability.

---

General rules

1. Follow standard conventions.
2. Keep it simple stupid. Simpler is always better. Reduce complexity as much as possible.
3. Boy scout rule. Leave the campground cleaner than you found it.
4. Always find root cause. Always look for the root cause of a problem.

Design rules

rauchg

From zero to microservice with 𝚫 now

The following guide will show you how to deploy a simple microservice written in JavaScript using 𝚫 now.

It uses Open Source tools that are widely available, tested and understood:

• Node.JS
• NPM
• Express

madhums

• 10 Interview Questions Every JavaScript Developer Should Know
• The Two Pillars of JavaScript
• Why I use Tape Instead of Mocha & So Should You
• A Simple Challenge to Classical Inheritance Fans
• Assessing Employee Performance
• How to Use Classes and Sleep at Night
• A curated list of resources on why ES6 (aka ES2015) classes are NOT awesome
• [Composition in Javascript](http://rjzaworski.com/2