class Configuration {
// Define a private static property with an explicit type (string)
private static environment: string = "production";
// A static method with explicit return type (string) to safely access the property
public static getEnvironment(): string {
// Use the class name to access static members internally
return Configuration.environment;
}
// A static method with parameter typing (newEnv: string) and return type (void)
public static setEnvironment(newEnv: string): void {
if (newEnv && newEnv.trim() !== "") {
Configuration.environment = newEnv;
}
}
}
// --- Example Usage ---
// 1. Accessing the static property/method directly via the Class Name (Best Practice)
console.log(`Current Environment: ${Configuration.getEnvironment()}`);
// 2. Modifying the static property via a typed static setter function
Configuration.setEnvironment("staging");
console.log(`Updated Environment: ${Configuration.getEnvironment()}`);
/*
* Note on Instances:
* const configInstance = new Configuration();
* console.log(configInstance.environment); // Error: Property 'environment' is a static member of class 'Configuration'
*/
/*
run:
Current Environment: production
Updated Environment: staging
*/
