Deprecation Warnings with Object.defineProperty

Use Object.defineProperty to emit console warnings when deprecated object properties are used.

// Define an object with some properties
const myObject = {
    newProperty: 'This is a new property'
};

// Define a deprecated property using Object.defineProperty
Object.defineProperty(myObject, 'oldProperty', {
    get: function() {
        console.warn('Warning: `oldProperty` is deprecated and will be removed in future versions.');
        return 'This is a deprecated property';
    },
    set: function(newValue) {
        console.warn('Warning: `oldProperty` is deprecated and will be removed in future versions. You set:', newValue);
    },
    enumerable: false, // Prevents the property from appearing in `for...in` loops
    configurable: true // Allows the property to be redefined or deleted
});

// Usage of the deprecated property triggers a warning
console.log(myObject.oldProperty); // Get access triggers warning
myObject.oldProperty = 'New Value'; // Set access triggers warning

The code defines an object and uses Object.defineProperty to add a deprecated property to it. It sets custom getter and setter methods which emit warnings to the console when the property is accessed or modified, alerting the user of the deprecation. The defined property is set to be non-enumerable and configurable.