Blog - kimserey lam

Jul 03, 2020

Contentchild Decorator Angular

Continuing on our discovery of Angular decorators, in this week post we will be looking at ContentChild and ContentChildren. What the differences are, and when to use one or another.

Jun 26, 2020

Viewchild Decorator Angular

Last week we looked into HostBinding and HostListener decorators and how they could be used. In this week post we continue on our discovery of great decorators by looking at ViewChild and ViewChildren. What the differences are, and when to use one or another.

Jun 19, 2020

Multi Inheritance In Object Oriented Programming

Multi inheritance (MI) in Python is commonly used for mixins, where functionalities are defined in mixin classes and can be used as base classes. When those classes override the same functions, the program experiences what is known as the Diamond Problem. In order to call the proper functions, the compiler employs a Method Resolution Order (MRO) mechanism. In today’s post, we’ll look at the Diamond Problem, the MRO mechanism used by Python and we’ll also quickly look at why C# doesn’t have multi inheritance.

Jun 12, 2020

Hostbinding And Hostlistener Angular

When creating directives, we sometime face situation where we need to change properties from the element or component hosting the directive. Those can changes can be made using HostBindsing decorator. In today’s post we will look at how we can use HostBinding and HostListener to change properties of the host element.

Jun 05, 2020

Inline Templates With Ngtemplateoutlet

Angular has some nice directives hidden in the code that aren’t discussed in the guides. One of them is NgTemplateOutlet which allows us to create inline reusable templates. In today’s post we will look at how we can use NgTemplateOutlet to share functionalities in a HTML template.

May 29, 2020

Using Newman In Nodejs

Few weeks ago we looked into automating Postman collection run using Newman CLI. On top of using the CLI directly, Newman can also be used in a NodeJS application which makes it very versatile to create tools for testing. Today we will look at how we can use Newman as a NPM library and see the options provided.

May 22, 2020

Vscode File Navigation Tips

Visual Studio Code is a free open source code editor. It comes packed with features and can also be extended with many extensions built by the community. Since its first launch five years ago, it has become the main editor to work on frontend projects like Angular or React projects. Because it is so quick and easy to use, we can get started straight away and build without having to explore much of its functionalities. But there are gems inside that if known, enhance drastically the productivity. In today’s post I will go through some file tips with Visual Studio Code version 1.44.2 which will boost productivity.

May 15, 2020

Deep Dive Into Ngif Structural Directive

Structural directives in Angular, like ngIf and ngFor are mysterious directives. They both come with custom notation in order to define the content of the directives for example *ngIf="abc else xyz" and *ngFor="let x of xs; let i=index; trackBy: trackBy. In today’s post we will demystify the notation of NgIf, called a microsyntax, by looking at how it can be used, and then reconstructing the directive ourselves.

May 08, 2020

Handlebars Built In Helpers

Handlebars is a simple template engine which we can use to generate HTML content or other text format. Being very quick to use and understand makes it an ideal tool for projects needing the most common statements like conditions or loops. In today’s post we will look into Handlebars built in helpers with example.

May 01, 2020

Unicode Explained

The step of translating text to binary format, called character encoding, is an important part of software development. Nowadays, we have some reminiscence of the ASCII code but majority of the systems default to UTF-8. In today’s post we will be looking at what the ASCII, Unicode and UTF-8 are.

Apr 22, 2020

Event Sourcing With Equinox

One of the concept which gained a lot of traction from the last five years is Event Sourcing. Event Sourcing changes the way data are handled, how data are stored, and how perception of the current state is constructed. In this post, we will explain what is Event Sourcing and will see how it can implement using Equinox, a .NET implementation of an event store.

Apr 17, 2020

Figma Constraints

Few weeks ago we looked into the auto layout feature of Figma to create flexible layout which adapt to new elements placed into them and allow to automatically arrange elements while maintaining padding and alignment. Another great feature of Figma used to handle placement of elements within a frame is to use constraints. Constraints in Figma come in multiple format, in today’s post we will explore each one of them and understand how they are used.

Apr 10, 2020

Figma Color Palette

Last week we talked about Figma auto layout and how it allowed us to automatically place elements in a design. In today’s post, we will look at how we can define a color palette which can then be used throughout our design.

Apr 03, 2020

Figma Auto Layout

Figma is a collaborative design tool that comes with a Free tier pricing for 3 projects and 2 editors. It comes with a full suite of features that allows us to create reusable designs and makes it easy to iterate on the designs. One of the features provided is the auto layout. In today’s post we will look into Figma auto layout feature and how it can be used to design components.

Mar 27, 2020

Kafkacat The Cli For Kafka

Kafka is a widely used message broker platform. Althought very powerful, developping and testing applications that consume or produce Kafka messages can be really painful. In today’s post we will look at kafkacat, a command line tool that will make our life easier when interacting with Kafka.