front-end Archives - Petamind https://petaminds.com/category/full-stack/front-end/ A.I, Data and Software Engineering Wed, 05 Jun 2024 22:27:51 +0000 en-US hourly 1 https://wordpress.org/?v=6.9.4 https://petaminds.com/wp-content/uploads/2019/09/ic_launcher.png front-end Archives - Petamind https://petaminds.com/category/full-stack/front-end/ 32 32 How I build automated testing for the payment terminals https://petaminds.com/how-i-build-automated-testing-for-the-payment-terminals/ https://petaminds.com/how-i-build-automated-testing-for-the-payment-terminals/#respond Thu, 16 May 2024 00:27:17 +0000 https://petaminds.com/?p=5173 Payment terminals are devices used to process card transactions and must undergo extensive certification before being released to the market. Therefore, it is essential to test them quickly and reliably. I named the project as Mastoo (code name: MR2). The MR2 architecture To achieve this, our team are building a solution for automation testing with […]

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]]> https://petaminds.com/how-i-build-automated-testing-for-the-payment-terminals/feed/ 0 MVVM vs MVI – Architecture for Mobile Development https://petaminds.com/mvvm-vs-mvi-architecture-for-mobile-development/ https://petaminds.com/mvvm-vs-mvi-architecture-for-mobile-development/#respond Fri, 05 Apr 2024 22:22:00 +0000 https://petaminds.com/?p=5191 The Model-View-ViewModel (MVVM) and Model-View-Intent (MVI) are architectural patterns used in software development, particularly for structuring the code of user interface (UI) applications. Both patterns aim to separate concerns and manage the flow of data between the UI and the underlying data models, but they do so in different ways. Let’s explore both patterns with […]

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]]> https://petaminds.com/mvvm-vs-mvi-architecture-for-mobile-development/feed/ 0 Exploring Kotlin’s suspendCoroutine: A Guide with Examples https://petaminds.com/exploring-kotlins-suspendcoroutine-a-guide-with-examples/ https://petaminds.com/exploring-kotlins-suspendcoroutine-a-guide-with-examples/#respond Tue, 08 Aug 2023 22:51:56 +0000 https://petaminds.com/?p=3948 Introduction: Kotlin, with its modern syntax and powerful features, has taken the programming world by storm. One of its unique offerings is the suspendCoroutine function, a game-changer when it comes to handling asynchronous operations. In this article, we’ll dive into the world of suspendCoroutine, demystifying its usage and providing you with real-world examples to showcase […]

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]]> https://petaminds.com/exploring-kotlins-suspendcoroutine-a-guide-with-examples/feed/ 0 The Top 5 Most In-Demand Programming Languages to Learn for a Bright Future https://petaminds.com/the-top-5-most-in-demand-programming-languages-to-learn-for-a-bright-future/ https://petaminds.com/the-top-5-most-in-demand-programming-languages-to-learn-for-a-bright-future/#respond Wed, 02 Aug 2023 02:27:06 +0000 https://petaminds.com/?p=3931 Introduction: In the fast-paced world of technology, staying ahead of the curve is crucial for aspiring programmers. As the demand for software developers continues to surge, knowing which programming languages are most sought-after can give you a competitive edge in the job market. In this article, we’ll explore the top five most in-demand programming languages […]

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]]> https://petaminds.com/the-top-5-most-in-demand-programming-languages-to-learn-for-a-bright-future/feed/ 0 Convert Callback Into Kotlin Coroutines Suspend or Deferred https://petaminds.com/convert-callback-into-kotlin-coroutines-suspend-or-deferred/ https://petaminds.com/convert-callback-into-kotlin-coroutines-suspend-or-deferred/#respond Thu, 28 Apr 2022 09:16:45 +0000 https://petaminds.com/?p=3718 Since coroutine is a hot topic in mobile development, converting vanilla JVM callback into Kotlin Coroutines is desirable. The wrapping happens using something called SuspendCoroutine. What is a SuspendCoroutine suspendCoroutine is a builder function that mainly used to convert callbacks into suspend functions. Let’s say for example you have some legacy (or not) Api, that uses callbacks. You can […]

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]]> https://petaminds.com/convert-callback-into-kotlin-coroutines-suspend-or-deferred/feed/ 0 Best Android Image Loaders – 2022 https://petaminds.com/best-android-image-loaders-2022/ https://petaminds.com/best-android-image-loaders-2022/#respond Tue, 29 Mar 2022 20:35:47 +0000 https://petaminds.com/?p=3701 In this article, we will explore some of the best Android image loaders for you. These are some of the most commonly used third-party libraries since Android SDK doesn’t provide a simple image loading solution for developers to use. Generally, you tend to have to implement one yourself or look at third-party libraries. Glide Glide […]

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]]> https://petaminds.com/best-android-image-loaders-2022/feed/ 0 Kotlin Scoping Functions apply vs. with, let, also, and run https://petaminds.com/kotlin-scoping-functions-apply-vs-with-let-also-and-run/ https://petaminds.com/kotlin-scoping-functions-apply-vs-with-let-also-and-run/#respond Sun, 27 Mar 2022 00:03:42 +0000 https://petaminds.com/?p=3693 Functional-style programming is highly advocated and supported by Kotlin’s syntax as well as a range of functions in Kotlin’s standard library. In this post we will examine five Kotlin scoping functions (aka higher-order functions): apply, with, let, also, and run. When learning these five functions, you will need to memorize 2 things: how to use them, and when to […]

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]]> https://petaminds.com/kotlin-scoping-functions-apply-vs-with-let-also-and-run/feed/ 0 Constraints with Android Worker https://petaminds.com/constraints-with-android-worker/ https://petaminds.com/constraints-with-android-worker/#respond Sat, 26 Mar 2022 01:19:11 +0000 https://petaminds.com/?p=3682 Sometimes, we want our app to perform some background tasks under certain conditions, such as Battery level or network etc. With Worker and Constraints, we can conveniently achieve that. The example problem A worker class that prints a message to the console. We want this function doWork executes when the network is available or the […]

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]]> https://petaminds.com/constraints-with-android-worker/feed/ 0 PETAMIND IS NOW LIVING ON AWS https://petaminds.com/petamind-is-now-living-on-aws/ https://petaminds.com/petamind-is-now-living-on-aws/#respond Sat, 02 Oct 2021 19:12:28 +0000 http://13.238.174.212/?p=3170 After 3 years residing on Google Cloud, we decided to move to AWS. GC is generally OK, however, there is some issue related to the architecture of the previous one that may hinder the future scalability! As such, we decided to re-architecture the site and its workload for the future. There may be some issues […]

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]]> https://petaminds.com/petamind-is-now-living-on-aws/feed/ 0 WHY DO WE NEED TO OVERRIDE EQUALS AND HASHCODE METHODS IN JAVA/Kotlin https://petaminds.com/why-do-we-need-to-override-equals-and-hashcode-methods-in-java-kotlin/ https://petaminds.com/why-do-we-need-to-override-equals-and-hashcode-methods-in-java-kotlin/#comments Fri, 19 Mar 2021 02:12:56 +0000 https://petaminds.com/?p=2889 In this post, we will discuss why it is important to override equals and hashCode method in Java/Kotlin. Item 9 in Josh Bloch’s Effective Java suggests always override hashCode() method if the class overrides equals(). In this post, we will discuss why this is necessary and good practice.  We know that two objects are considered equal only if their references […]

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