vbarbarosh

vbarbarosh

vbarbarosh

<!-- Rendering charts with chart.js -->

<div style="position:absolute; top:0; left:0; width:100%; height:100%;">
    <canvas id="canvas" style="width:100%; height:100%;"></canvas>
</div>

<script src="https://unpkg.com/[email protected]/dist/Chart.min.js"></script>
<script>
new Chart(document.getElementById('canvas').getContext('2d'), {
    type: 'line', // line|bar

vbarbarosh

vbarbarosh

<!-- Scale a point around origin -->
<!-- https://codepen.io/vbarbarosh/pen/OYrdxK -->

<svg>
    <circle id="orig" cx="200" cy="150" r="10" />
    <circle id="a" cx="25" cy="25" r="5" fill="#8f8" />
    <circle id="b" cx="150" cy="25" r="5" />
</svg>  

<style>

vbarbarosh

<!-- Rotate a point around origin -->
<!-- https://codepen.io/vbarbarosh/pen/joXEyR -->

<svg>
    <circle id="origin" cx="200" cy="150" r="10" />
    <circle id="point" cx="175" cy="125" r="5" />
</svg>  

<style>
svg {

vbarbarosh

const Promise = require('bluebird');
const fs = require('fs');
const util = require('util');

// Ways to promisify a function
// $ node node_promise_promisify.js

// https://nodejs.org/api/util.html#util_util_promisify_original
const fs_open = util.promisify(fs.open);

vbarbarosh

const Promise = require('bluebird');

// How Promise.then is designed to work
// $ node node_promise_then.js

main().catch(panic);

async function main()
{
    // FULFILLED

vbarbarosh

// How to work with Buffer

main().catch(panic);

async function main()
{
    // Use this if buffer will be immediately written to
    Buffer.allocUnsafe(1024);

    // Use this to allocate memory filled with zeroes

vbarbarosh

#!/bin/bash

# http://www.gnu.org/software/bash/manual/bash.html#The-Set-Builtin
# http://redsymbol.net/articles/unofficial-bash-strict-mode/
set -o nounset -o errexit -o pipefail

# Merge several .woff2 files into a single one. Primary use case is to
# feed resulted file to a svgtext app.
#
# https://github.com/fonttools/fonttools