set

Sets a global variable.

Methods set(key, value)

Purpose: This method is used to add or update a global variable in the Node.js global object. It allows you to store data that can be accessed from any part of your application without needing to pass it explicitly between modules.

Parameters:

  • key (string): The name of the global variable. This should be a unique string that identifies the variable.

  • value (any): The value to be assigned to the global variable. This can be of any data type (string, number, object, array, etc.).

Usage Example:

const globalManager = require('global-manager');

// Set a global variable
globalManager.set('appName', 'MyApp');

// Retrieve and print the global variable
const appName = globalManager.get('appName');
console.log(appName); // Output: MyApp

Detailed Explanation: The set method assigns a value to a specified key in the global object. If the key already exists, its value will be updated with the new value provided. This method is useful for storing configuration settings, application-wide constants, or any other data that needs to be globally accessible.

Notes:

  • Be cautious when setting global variables to avoid naming conflicts. Choose unique and descriptive keys.

  • Overwriting existing global variables unintentionally can lead to bugs and unpredictable behavior. Always check if a key already exists using the has method before setting a new value, if necessary.

Last updated