I help JavaScript engineers discover tools, workflows and knowledge to master their craft.

AuthorJasper Valero

Jasper Valero


Rockstar engineer working hard to dent the universe.



Meeting Vigilance

Posted on March 9th, 2018.

Tired of losing countless hours of productivity to ill-planned meetings? Do you leave meetings with the desired outcome still on your TODO list? Adding meeting vigilance to your repertoire will level up your meeting game in no time flat! Read on to see the strategies and rules that I use to keep my meetings productive […]



My Manager README

Posted on February 8th, 2018.

Recently Engineering Managers across the industry have been sharing their Manager READMEs. These serve as your introduction to new teams and new hires. If you’re a manager or leader I highly recommend creating your own. Without further ado here is mine. Manager README As your manager, I look forward to getting to know you more […]



The Magic Of The ES6 Let Keyword

Posted on May 14th, 2015.

In this post, you’ll learn about the refined scope control provided by the ES6 let keyword. With let, you can keep your variable scope contained within the enclosing block.This can be a great alternative to the enclosing function scope that the var keyword invokes. Using it will allow you to write more resilient code that […]



An Intro To The Delightful JavaScript ES6 String Templates

Posted on March 26th, 2015.

Finally, JavaScript is getting some much-needed improvements. It offers a new feature that will help you create templates from strings. In this post, I’ll provide a super quick introduction to ES6 string templates so you can start using them immediately. I’ll also tell you why they’re one of my favorite new features. One of the […]



Why JavaScript ES6 Arrow Functions Will Make You Happy

Posted on March 11th, 2015.

In this post, I’ll be explaining the exciting changes coming to JavaScript with ES6 arrow functions. After reading this post, you will have a solid understanding of ES6 arrow functions. You will be able to write functions using the new syntax. You will be able to explain its new features to your friends and colleagues. […]



You Need To Know That ES6 Has Arrived

Posted on February 26th, 2015.

I’m convinced that the time to start coding in ECMAScript 6 (ES6) is now. I know a large part of the JavaScript community is waiting for a cue to begin. I’m going to share with you the signals that I’ve been seeing. If you’re not using ES6 yet, hopefully by the end of this post I will […]


Version Control

How To Boost Your .gitignore Workflow With gitignore.io

Posted on February 20th, 2015.

Do you have a .gitignore template setup in your text expander or code editor snippets? Do you tediously add coverage to it over time as you find new files you don’t want committed into your Git repos? Well, now that you’ve spent all that time on it, get ready to let that old thing collect […]


Developer Tools

7 Quick Ways To Make A Text Expander Your Hero

Posted on January 22nd, 2015.

You may be surprised to find out that your typing workflow may be 150 years old. If you’re not using a text expander then the way you’ve been coding and typing is from the 1800s. The good news is I’m going to give you 7 quick ways that you can put a text expander to work for […]



How To Install Sinon.JS In The Browser With Bower

Posted on January 21st, 2015.

Just a quick tip for those of you using Bower to install Sinon.JS for unit testing in the browser. Hopefully you’ll avoid scratching your head like I did when things didn’t work out as expected when using the registered Bower package. The solution is sometimes so easy, but it can still take a little time to find. […]


Product Development

Why I Think Feedback Loops For All The Things Is Awesome

Posted on January 7th, 2015.

The world of product development is a scary place without feedback loops working for us at all times. Would you believe me if I told you a sudden epiphany hit me out of nowhere and I instantly realized just how many decisions in life that people make based on assumptions? I’m not talking small, fill-in-the-gap assumptions […]