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/*
 * Copyright (c) 2000-2020 Apple Computer, Inc. All rights reserved.
 *
 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@
 *
 * This file contains Original Code and/or Modifications of Original Code
 * as defined in and that are subject to the Apple Public Source License
 * Version 2.0 (the 'License'). You may not use this file except in
 * compliance with the License. The rights granted to you under the License
 * may not be used to create, or enable the creation or redistribution of,

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What I Wish I'd Known About Equity Before Joining A Unicorn

Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.

This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would

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fun GraphicsContext.group(op: GraphicsContext.() -> Unit) {
    save()
    op(this)
    restore()
}

// ...

val ctx = canvas.graphicsContext2D
canvas.onMouseDragged = EventHandler { e ->

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package com.vitalyk.kotlin.sandbox

import javafx.application.Application
import javafx.geometry.Insets
import javafx.geometry.Pos
import javafx.scene.Scene
import javafx.scene.canvas.Canvas
import javafx.scene.control.Button
import javafx.scene.control.Label
import javafx.scene.control.Slider

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const width = 800;
const height = 400;
let data = [];

for (let i = 0; i < 5000; i++) {
    data.push({
        x: width * Math.random(),
        y: height * Math.random(),
        dx: Math.random() - 0.5,
        dy: Math.random() - 0.5

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Bar chart with image markers: https://fiddle.sencha.com/#fiddle/1i0e

visibleRange to actual range https://fiddle.sencha.com/#fiddle/1ilc

candlestick series renderer https://fiddle.sencha.com/#view/editor&fiddle/1lk4

custom sprite example

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var now = new Date();
var then = new Date();
then.setDate(now.getDate() + 7);

var axis = d3.axisTop().ticks(d3.timeDays).tickFormat(d3.timeFormat('%b %d'));
var scale = d3.scaleTime().domain([now, then]).range([0, 500]);

axis.scale(scale);

d3.select(document.body).append('svg').append('g').call(axis); // TypeError: t.range is not a function