Reflecting on my three plus years at Indeed, I think my greatest takeaway would be learning about test driven development (TDD). Prior to my last role, I treated writing tests as separate from the implementation code I had to write to deliver software. I failed interviews with take-home assignments because my submission didn’t have “proper” tests. I also fared badly in pair programming interviews because I didn’t know what to say when asked “what should we test next? Read more...

It felt like yesterday when I last wrote 2021 in Review. I cannot believe that this is the last day of 2022. A lot happened this year. I moved to a new house 🏡 I’m now a Staff Software Engineer! Still growing into my new role. I joined a language exchange programme. I hiked two mountains in 2 consecutive months this year. Mount Hallasan, Jeju, South Korea in November. Mount Rinjani, Lombok, Indonesia in December. Read more...

I’ve been trying to solve some type challenges to understand typescript better. I had a lot of fun with a few easy and medium challenges which involve implementing types. One of which I really enjoyed implementing is IndexOf<T, U>. Basically it behaves like a regular indexOf function, except we are dealing with types, not literal values type A = IndexOf<[1, 2, 3], 2>; // A is 1 type B = IndexOf<[2, 6, 3, 7, 9, 3, 8, 10], 3>; // B is 2 type C = IndexOf<[0, 0, 0], 2>; // C is -1 I started with this: Read more...

GraphQL has been around for a long time, but I’ve only recently encountered it at work. Before I pen my thoughts, I want to clarify that I only have limited experience working with GraphQL. What I like about GraphQL Imagine that we have a query that returns a list of friends, each of which is a Person entity with many fields. To me the most useful thing about GraphQL is to be able to customize the response (aka Payload) by specifying which fields you want, like so: Read more...

My first post on this blog is titled “2020 in Review” and I wrote it about 1 year ago. A year has passed, and here’s “2021 in Review”. Some highlights of 2021: Learnt the basics of terraform. Spent a few weekends writing small lisp programs for fun. Researched the process for buying resale HDB flats. During which, I was inspired to write a command line utility for pulling past HDB resale prices for houses which matched the block and storey range of a listed property. Read more...

Recently I have been going through my nth decluttering process. Part of that includes giving, selling or throwing away books that I no longer read. And I realized that some of these books have stood the test of time and continues to “spark joy”. After multiple rounds of decluttering, they are still on my shelves. So I decided to write a post about them and why they are worth reading and re-reading. Read more...

The more I work with Terraform, the more I like the idea of IaC and how Terraform is provider agnostic. So much so that I decided to get certified. I thought that would force me to fill the voids in the basics of Terraform. After some weeks of study coupled with hands on usage at work, I passed the certification exam this morning! Although the exam consisted mostly of multiple choice questions, it was not all straight forward rote memorization. Read more...

Having learnt more about terraform, coupled with some hands-on at work, I have expanded my mental model of terraform. Drawing it out on paper, We can use count = [some number] to create multiple instances of each resource. If we ever need to identify each instance of a resource, we can make use of a contextual variable called count.index for the index of current instance. In the diagram above, I have also illustrated a module. Read more...

Recently I have been picking up Terraform on the job. I love the idea of Infrastructure as Code where all the resources are described in files that are versioned like regular code. In this post, I am attempting to do a brain dump of what I have learned so far. In short, I would describe Terraform as an IAC tool that lets you author files (.tf extension) that describes your infrastructure and helps you to manage (apply, destroy) the infrastructure state. Read more...

A few weeks ago, I started tinkering with our government’s HDB resale prices API . I had an idea to use recent transaction data to gauge if a listing on a property portal (e.g., property guru) is overpriced or fairly priced. Paralyzed by the sheer number of variables, I soon lost steam. Resuming after a two week hiatus, I scoped the coding down to just fetching recent transactions which matched a listing’s address (specific block and street), flat type (4 room or 5 room) and floor level (low, mid and high). Read more...