Angular 5 features and benefits

Angular 5 is generally considered to be “faster, lighter and easy to use” as compared to the previous versions of the same framework. Generally, Angular is rather sizeable when put next to other web development frameworks, which makes it suitable for building large, enterprise-sized applications with lots of complex components.

Angular 5 is supposed to be more lightweight while keeping the advantages of its predecessor. However, this is not the only benefit of the new version, others being quite attractive and worth closer attention.

Main advantages of Angular 5 framework

The international community of Angular developers had already appreciated the improvements that they found in the new version of their preferred framework. Many of the improvements are aimed at streamlining the development, obtaining a better-quality code and reducing the number of errors.

Another aspect that is worth mentioning is the increased support of third-party component integration and the availability of a great number of modules in the initial Angular 5 package.

Build optimizer

Angular 5 has the build optimizer function enabled by default. The build optimizer removes the code that is unnecessary at runtime, thus making the bundles smaller. Less code means that the application runs faster.

Build optimization is achieved by removing the so-called Angular decorators that are used only by the compiler and have no effect at runtime. Thus, to increase the app speed and performance, the decorators are not included, therefore, the final JavaScript bundles are smaller and easier to manage.

Note that the build optimizer is available only in the Angular commandline interface

TypeScript and Improved Compilation

Although Angular belongs to JavaScript frameworks, its language is, in fact, TypeScript. It is an extension, or superset, of JavaScript. The code written in TypeScript compiles easily to standard JavaScript.

The advantage of TypeScript is in its typed nature. In JavaScript, any errors made during code creation may be discovered only at runtime, as they may be easily overlooked while writing the code. TypeScript, on the other hand,detects errors as you type, thus allowing to correct them immediately.

Since TypeScript is not the pure JavaScript most developers are used to, it takes some learning and preparation to start writing code in TypeScript. That makes the learning curve of Angular somewhat steep; however, once you learn TypeScript, you are going to love it for its effectiveness.

The compiler of Angular 5 comes with TypeScript 2.3 which makes rebuilding and compilation much faster than in the previous versions. In addition, the compiler now supports incremental compilation.

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