How to use json-stringify-safe Library In JSON
In this approach, we are using the json-stringify-safe library to convert a TypeScript Map to JSON. We first convert the Map into a plain object using the forEach method, and then apply json-stringify-safe to get the JSON string representation.
Steps to use json-stringify-safe library with TypeScript:
Step 1: Initialize a New Project
Open your terminal or command prompt and navigate to the directory where you want to create your TypeScript project. Then run the following command.
npm init
Step 2: Install TypeScript as a dev dependency
You need to install TypeScript as a dev dependency in your project using the below command.
npm install typescript --save-dev
Step 3: Create a tsconfig.json file
The tsconfig.json file contains TypeScript compiler options for your project. Run the following command.
npx tsc --init
Step 4: Install json-stringify-safe
Install the json-stringify-safe library using the below command.
npm install json-stringify-safe
Step 5: Install node types
Install the @types/node into your project directory using the below command.
npm install --save @types/node
Step 6: Compile TypeScript Code
Use below command to compile TypeScript code.
npx tsc
Step 7: Run Your Code
Use the below command to run the code.
node index.js
Project Structure:
Example: The below example uses json-stringify-safe library to convert the map to JSON in TypeScript.
const stringify = require('json-stringify-safe');
const data: Map<string, string> = new Map([
['name', 'w3wiki'],
['type', 'Education'],
['category', 'Computer Science'],
]);
const obj: { [key: string]: string } = {};
data.forEach((value, key) => {
obj[key] = value;
});
const jsonString: string = stringify(obj);
console.log(jsonString);
Output:
How to Convert Map to JSON in TypeScript ?
In TypeScript, we can convert the Map to JSON by manipulating the key-value pairs of the Map into JSON-formatted string. We can use various approaches like JSON.stringify, fast-json-stringify, and json-stringify-safe Libraries for the conversion.
Table of Content
- Using JSON.stringify
- Using fast-json-stringify Library
- Using json-stringify-safe Library