Jeremy Wagner malchata

Speaker Rider

Last updated 14 April 2021

What is a speaker rider?

As speaking comes with immense privilege, I have crafted a speaker rider to set expectations and boundaries around my engagement. I am grateful to all the conference organisers who have brilliantly hosted me. I would love to continue to exercise this privilege to speak at conferences, and use this privilege to make the landscape more accessible and beneficial to tech's most historically excluded and marginalised communities.

Considerations

😫 I provide a lot of explanations for those of you who never had to consider these things. Most thoughtful conferences I've attended check most of these boxes intrinsically, particularly when conference runners are experienced speakers. They get it.

Testing double-fetching of `module`/`nomodule` JS code (including the Safari hack)

<script type="module" src="module.js"></script>
<script nomodule src="nomodule.js"></script>

Update September 2020: life's almost good. Edge Chromium is widely rolled out, and Safari 14.0 ships soon with a fix.

Test page: https://jg-testpage.github.io/es-modules/module-nomodule/

Hello -

I am currently staying at the David Intercontinental in Tel Aviv, Israel - I'm here on business for 10 days - I'm a web software engineer at Google in Mountain View, California.

While reading a close friend's blog using the hotel wifi (note I am using the paid service), a popup appeared midway down the page asking me to use my room number to "get the latest digital services" from the hotel:

As my friend's blog is hosted in the US, and he's never been to to the David hotel or Israel, for that matter, I thought it was somewhat odd that his website would be asking me anything like this. So, I jumped on my laptop, and visited the page from there with Chrome's developer tools running.

How To Safely Store A Password

Use bcrypt. Use bcrypt. Use bcrypt. Use bcrypt. Use bcrypt. Use bcrypt. Use bcrypt. Use bcrypt. Use bcrypt. Use bcrypt.

Why Not {MD5, SHA1, SHA256, SHA512, SHA-3, etc}?

These are all general purpose hash functions, designed to calculate a digest of huge amounts of data in as short a time as possible. This means that they are fantastic for ensuring the integrity of data and utterly rubbish for storing passwords.

bcrypt Solves These Problems

How? Basically, it’s slow as hell. It uses a variant of the Blowfish encryption algorithm’s keying schedule, and introduces a work factor, which allows you to determine how expensive the hash function will be.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

	(() => {
	// processLoAFEntry.js
	function floorObject(o) {
	return Object.fromEntries(
	Array.from(Object.entries(o)).map(([key, value]) => [
	key,
	typeof value === "number" ? Math.floor(value) : value
	])
	);
	}

	class FBGroupMemberRemover {
	constructor() {
	this.adminText = 'Admin';
	this.removeMemberModalHeadingText = 'Remove Member';

	this.memberElementSelector = '[data-name="GroupProfileGridItem"]';
	this.memberContextMenuSelector = 'button[aria-label="Member Settings"]';
	this.removeMemberButtonSelector = 'a[data-testid="leave_group"]'

	this.removalOptions = {