Seeking Advanced Node.js Function Calling Examples

Below is an example that shows how you can call functions from an npm package in Node.js. This example demonstrates both the basic usage of calling functions and chaining asynchronous operations:

Basic Function Calling

Imagine you have a package that exports two functions: functionA and functionB. After installing the package via:

BASHCopied
npm install example-package

you can call these functions as follows:

JAVASCRIPTCopied
// Import the package
const examplePackage = require('example-package');

// Call functionA with two parameters
examplePackage.functionA('value1', 'value2');

// Call functionB with one parameter
examplePackage.functionB('value1');

Chaining Asynchronous Functions

If your functions return promises or if you need to perform asynchronous operations, you can chain them. For instance:

JAVASCRIPTCopied
const yourFunction = () => {
  return new Promise((resolve) => {
    setTimeout(() => resolve('data from yourFunction'), 1000);
  });
};

const anotherFunction = (data) => {
  return new Promise((resolve) => {
    setTimeout(() => resolve(`Processed: ${data}`), 1000);
  });
};

yourFunction()
  .then((data) => anotherFunction(data))
  .then((result) => console.log(result))
  .catch((error) => console.error('Error:', error));

Or, using async/await for cleaner syntax:

JAVASCRIPTCopied
const processData = async () => {
  try {
    const data = await yourFunction();
    const result = await anotherFunction(data);
    console.log(result);
  } catch (error) {
    console.error('Error:', error);
  }
};

processData();

These samples illustrate how you might structure your Node.js code to call functions and handle asynchronous operations. Experiment with these patterns to build more complex workflows in your projects.