Deadlocks & Livelocks — Avoid them in real world Concurrency

Deadlocks can occur only in Concurrent (multi-threaded) programs where threads synchronize (use locks) access to one or more shared…

Simar Paul Singh

Mar 22, 2019

React Hooks | useEffect for Life-Cycle Events (Tricks & Tips)

useEffect() can combine componentDidMount, componentDidUpdate, and componentWillUnmount but is tricky.

You can decipher most of what I have to discuss here from official docs for hooks. It’s easier…

When NOT to use ES6+ Arrow Functions (Lambdas)

Arrow functions or Lambdas, were introduced in ES 6. Apart from its elegance in minimal syntax, most notable functional difference is scoping of this inside an arrow function

In regular function expressions, the this…

Simar Paul Singh

Mar 10, 2019

Performance & Concurrency | Build Fuel Tune

Threads : Throttling :: Memory : Queues

NgRx Router Store | Reduce & Select Route Params

React | debounce with Higher Order Component

I was implementing a well known solution of debouncing onChange(input: string) from a material-ui’s SearchBar component, which gives me…

Ngrx http$ Effects should listen for CANCEL action

In a Ngrx implementation, a Store Effect loads an entity from from REST APIs when it receives a FETCH_ENTITY action and then dispatch a…

RxJS | Create Observables from event sources directly

Working in angular, we use RxJs we subscribe to Observable(s) to listen/ process event streams Ex (ActvatedRoute.params , HttpClient) etc…

Simar Paul Singh

Oct 20, 2018

Testing Angular Container Components | Shallow & Deep

Typical Angular application renders and interacts with set of Container (Smart / Stateful) components, containing one or more re-usable Presentation (Dumb / Stateless) components.

Simar Paul Singh

Sep 29, 2018

Kotlin | Extension Functions, make any class have what you wish for

Kotlin allows us to extend a class with new functionality at compile-time without having to inherit from any parent class using a extension functions.