Zoneawarepromise get value

Zone Aware Promise – Getting Value

The Zone Aware Promise is a feature provided by the Angular framework that helps in maintaining the execution context (Zone) while working with asynchronous operations.
When using a Zone Aware Promise, it is possible to get the value returned by the promise either synchronously or asynchronously.

Getting Value Synchronously

To get the value synchronously, you can use the .then method on the promise and access the resolved value directly.
This approach is useful when the value is immediately available and you want to avoid the additional overhead of asynchronous handling.

    
      const promise = new Promise((resolve, reject) => {
        resolve("Hello, World!");
      });
      
      const value = promise.then(result => result);
      console.log(value); // Output: Hello, World!
    
  

Getting Value Asynchronously

To get the value asynchronously, you can use the .then method on the promise and provide a callback function to handle the resolved value.
This approach is necessary when the value is not immediately available and requires time to be fetched from an external source or computed.

    
      const promise = new Promise((resolve, reject) => {
        setTimeout(() => resolve("Hello, World!"), 2000);
      });
      
      promise.then(result => {
        console.log(result); // Output: Hello, World!
      });