Is TypeScript necessary, or can I simply stick with ES6?

As a client developer using AngularJS in my daily job, we are considering transitioning to TypeScript. After researching TypeScript, I discovered that most JavaScript packages I require need definition type files. This can be inconvenient, especially when trying out new things without proper definitions. This has been quite frustrating for me, even the existing jQuery definition poses problems when using TypeScript 1.5 beta. Recently, I've been exploring ES6 which seems similar to TypeScript. Should I switch to ES6 instead? Furthermore, I've heard that Angular 2 will fully support TypeScript - is this a reason for me to stick with it?

angularjstypescriptecmascript-6

Answer №1

Choosing between ES5, ES6, and TypeScript

Are you okay with adding a build step?

  • Yes - Opt for ES5
  • No - continue

Do you prefer using types?

  • Yes - Go for TypeScript
  • No - Choose ES6

Further Insight

ES5 is the current version of JavaScript widely used in browsers without requiring transformation through a build process.

ES6 (also known as ES2015) is the upcoming JavaScript improvement but needs transpilers to convert it into ES5 for browser compatibility. It remains a dynamic, untyped language.

TypeScript offers an optional typing system while integrating features from future JavaScript versions (ES6 and ES7).

Note: Many transpilers like Babel and TypeScript enable you to utilize advanced JavaScript features today while still generating code compatible with current browsers.

Answer №2

In my current Angular project, I've been using TypeScript for about a year and a half. Despite encountering occasional issues with definitions, the DefinitelyTyped project does an excellent job of keeping up with the latest versions of popular libraries.

Transitioning from vanilla JavaScript to TypeScript does have a learning curve, so it's important to consider your team's ability to make that shift. For those using Angular 1.x, translating examples from JS to TS may be necessary due to limited available resources on using TS and Angular 1.x together.

For those planning to use Angular 2, there are plenty of examples using TS, and the documentation will likely continue to prioritize TS, although it is not required to use TS with Angular 2.

While ES6 offers appealing features, its lack of support in current browsers may hinder its readiness for production use. Many developers opt to write code in ES6 and transpile it to ES5 for compatibility.

Ultimately, the choice between TS and ES6 depends on what you and your team are comfortable learning. Both languages have promising futures, but personally, I lean towards TS for quicker access to language features and better tooling support.

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