Sam Yamashita sotayamashita

Supported built-in functions

abs(float) - Returns the absolute value of a given float. Example: abs(1) returns 1, and abs(-1) would also return 1, whereas abs(-3.14) would return 3.14. See also the signum function.
basename(path) - Returns the last element of a path.
base64decode(string) - Given a base64-encoded string, decodes it and returns the original string.

Converting mkv to mp4 with `ffmpeg`

Essentially just copy the existing video and audio stream as is into a new container, no funny business!

The easiest way to "convert" MKV to MP4, is to copy the existing video and audio streams and place them into a new container. This avoids any encoding task and hence no quality will be lost, it is also a fairly quick process and requires very little CPU power. The main factor is disk read/write speed.

With ffmpeg this can be achieved with -c copy. Older examples may use -vcodec copy -acodec copy which does the same thing.

These examples assume ffmpeg is in your PATH. If not just substitute with the full path to your ffmpeg binary.

	$URL=(Invoke-WebRequest -UseBasicParsing https://www.java.com/en/download/manual.jsp).Content \| %{[regex]::matches($_, '(?:<a title="Download Java software for Windows Online" href=")(.*)(?:">)').Groups[1].Value}
	Invoke-WebRequest -UseBasicParsing -OutFile jre8.exe $URL
	Start-Process .\jre8.exe '/s REBOOT=0 SPONSORS=0 AUTO_UPDATE=0' -wait
	echo $?

	<!DOCTYPE html>
	<html>
	<head>
	<script>
	var data
	var formId = 'form'

	function drawForm() {
	if (!data) return
	var outputEl = document.getElementById(formId);

	{
	"emojis": [
	{"emoji": "👩‍👩‍👧‍👧", "name": "family: woman, woman, girl, girl", "shortname": ":woman_woman_girl_girl:", "unicode": "1F469 200D 1F469 200D 1F467 200D 1F467", "html": "👩&zwj;👩&zwj;👧&zwj;👧", "category": "People & Body (family)", "order": ""},
	{"emoji": "👩‍👩‍👧‍👦", "name": "family: woman, woman, girl, boy", "shortname": ":woman_woman_girl_boy:", "unicode": "1F469 200D 1F469 200D 1F467 200D 1F466", "html": "👩&zwj;👩&zwj;👧&zwj;👦", "category": "People & Body (family)", "order": ""},
	{"emoji": "👩‍👩‍👦‍👦", "name": "family: woman, woman, boy, boy", "shortname": ":woman_woman_boy_boy:", "unicode": "1F469 200D 1F469 200D 1F466 200D 1F466", "html": "👩&zwj;👩&zwj;👦&zwj;👦", "category": "People & Body (family)", "order": ""},
	{"emoji": "👨‍👩‍👧‍👧", "name": "family: man, woman, girl, girl", "shortname": ":man_woman_girl_girl:", "unicode": "1F468 200D 1F469 200D 1F467 200D 1F467", "html": "👨&zwj;👩&z

	const puppeteer = require('puppeteer');

	(async () => {

	const browser = await puppeteer.launch();
	const page = await browser.newPage();
	// Adjustments particular to this page to ensure we hit desktop breakpoint.
	page.setViewport({width: 1000, height: 600, deviceScaleFactor: 1});

	await page.goto('https://www.chromestatus.com/samples', {waitUntil: 'networkidle'});

	require 'sidekiq/api'

	# 1. Clear retry set

	Sidekiq::RetrySet.new.clear

	# 2. Clear scheduled jobs

	Sidekiq::ScheduledSet.new.clear

	# Please note, the commands below will create unreadable files and should be
	# used for testing file size only. If you're looking for something that has
	# lines in it, use /dev/urandom instead of /dev/zero. You'll then be able to
	# read the number of lines in that file using `wc -l large-file.1mb.txt`

	# Create a 1MB file
	dd if=/dev/zero of=large-file-1mb.txt count=1024 bs=1024

	# Create a 10MB file
	dd if=/dev/zero of=large-file-10mb.txt count=1024 bs=10240

	# For fish shell
	# it helps you win at npm
	function clean -d "Clean npm global modules"
	# ~/.config/fnm 下は例外

	end

	<div style="font-family: sans-serif;">
	<? var data = valid(); ?>
	<form id="form" name="form">
	<? if(Object.prototype.toString.call(data) === '[object Array]') { ?>
	<? for (var i = 0; i < data.length; i++) { ?>
	<? for (var j = 0; j < data[i].length; j++) { ?>
	<input type="checkbox" id="ch<?= '' + i + j ?>" name="ch<?= '' + i + j ?>" value="<?= data[i][j] ?>"><?= data[i][j] ?><br>
	<? } ?>
	<? } ?>
	<? } else { ?>

Sam Yamashita sotayamashita

Supported built-in functions

Converting mkv to mp4 with ffmpeg

Essentially just copy the existing video and audio stream as is into a new container, no funny business!

Single file conversion example

Converting mkv to mp4 with `ffmpeg`