vbarbarosh

const {createObjectCsvWriter} = require('csv-writer');

// Create csv files from arrays

main().catch(panic);

// https://stackabuse.com/reading-and-writing-csv-files-with-node-js/
async function main()
{
    const rows = [

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

# Show common lines in two files

# https://unix.stackexchange.com/a/398143/121657
# > Use comm -12 file1 file2 to get common lines in both files.

vbarbarosh

const csv = require('neat-csv');
const fs = require('fs');
const path = require('path');

// Parsing csv files and strings

main().catch(panic);

// https://stackabuse.com/reading-and-writing-csv-files-with-node-js/
async function main()

vbarbarosh

<!-- Calculating the point of intersection of two lines -->
<svg id="app" xmlns="http://www.w3.org/2000/svg">
    <line :x1="x1" :y1="y1" :x2="x2" :y2="y2" stroke="black" />
    <line :x1="x3" :y1="y3" :x2="x4" :y2="y4" stroke="black" />
    <circle :cx="c.x" :cy="c.y" r="3" fill="red" />
</svg>

<script src="//cdnjs.cloudflare.com/ajax/libs/vue/2.6.10/vue.min.js"></script>
<script>
// https://stackoverflow.com/a/38977789/1478566

vbarbarosh

<div id="app">
    Get property values from keyframes at specific time.
    <br>
    <textarea v-model="keyframes" cols="50" rows="5"></textarea>
    <br>
    <input v-model="time" type="number" min="0" max="1" step="0.01">
    <pre>{{ values }}</pre>
</div>

<script src="https://unpkg.com/vue@2.6.10/dist/vue.js"></script>

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

# How to pretty print css
#
# usage
# $ cat a.css | ./css_pretty_format > out.css

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

# Remove prefixes from css
#
# usage
# $ cat a.css | ./css_autoprefixer_clean > out.css

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

# How to add prefixes to css
#
# usage
# $ cat a.css | ./css_autoprefixer > out.css

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

# How to minify css
#
# usage
# $ cat a.css | ./css_minify_optimize > out.css

vbarbarosh

<?php

# Rounding errors in PHP

# docker run --rm -i php:5.6 php < php_math_float_error.php
# docker run --rm -i php:7.1 php < php_math_float_error.php
# docker run --rm -i php:7.2 php < php_math_float_error.php
# docker run --rm -i php:7.3 php < php_math_float_error.php

define('FLOAT_ERROR', 0.00001);