Author: Tobi Onisile
The web era evolves through the years, and new gear and architectures are created and designed to cope with exceptional troubles in legacy systems. TypeScript is a part of this evolution, but what precisely is it?
Strapi is the leading open source, customizable headless CMS It is used for building the application backend and can be used for different frontend platforms by consuming the content via APIs using any HTTP client or GraphQL-enabled frontend. Later in this article, we'll look at how to install Strapi locally and get started with it.
TypeScript automatically detects the variable's data type explicitly based on the initial value assigned to the variable. It is a big time-saver because you do not have to explicitly specify the data type for all variables. The annotations for the primitive types are number, Boolean, and string. TypeScript additionally helps data types with the subsequent annotations: array, enum, and void.
Typescript detects some mistakes during runtime. It is particularly critical for huge tasks with many developers, wherein an alternate in a single part of the code will affect the whole codebase. By checking that the code they may be writing will, in reality, work while it is compiled, TypeScript can save developers a whole lot of time and frustration.
This feature provides a way to write code in a flexible form that can work with various data types instead of a single data type. It allows users to write their own data type. This feature is common in a programming language, but to use Generic with TypeScript, one must write a type parameter "T" (can be named differently because T is a placeholder) inside the open < and close > bracket and a specify type function removeFirstEntryFromArray() must precede, which allows us to know the type that the user provides. Here is how our generic removeFirstEntryFromArray() function looks like:
ES6 is a superset of TypeScript. It carries all of the traits of ES6 plus a few extra features. One instance of this type of function is the lambda function. ES6 has introduced a mild alternative within the syntax of anonymous capabilities consisting of classes, interfaces, arrow capabilities, etc.
Language service plugins are a way to provide additional information to a user based on existing TypeScript files. They can enhance existing messages between TypeScript and an editor or provide their own error messages. Examples are:
- Ts-sql-plugin: This plugin adds SQL linting with a template string SQL builder.
- Typescript-styled-plugin: This plugin provides CSS linting inside template strings.
- Typescript-eslint-language-service: It provides eslint error messages and fixes them inside the compiler's output.
- Ts-graphql-plugin: It provides validation and auto-completion inside GraphQL query template strings.
Note: VS Code has the power for an associate extension to seamlessly embrace language service plugins; therefore, you'll have some running in your text editor with no need to outline them in your tsconfig.json.
TypeScript uses compile time type checking. This means it checks if the specified types match before running the code, not while running the code. By catching mistakes early, TypeScript can save developers time and frustration.
Strapi has full support for TypeScript, which allows developers to develop plugins with TypeScript and customize the Strapi admin with the TypeScript codebase. To Install the TypeScript version of Strapi is simple, but you will need to have the following software installed on your system and basic knowledge of them.
- Npm or Yarn
- Node.js: v14 or v16
Once you have them installed, you can install Strapi (Typescript version) by running the command below on your terminal.
npx create-strapi-app@latest my-project --typescript npm run develop
Your Strapi app will launch once the installation is completed. Register and log in to your dashboard page.
Note: There is also a developer page created to explain more and accurate details on Strapi TypeScript.