A class decorator is just a function that takes the class as its only argument and returns it after doing something with it:
function log<T>(target: T) {
// Do something with target
console.log(target);
// Return target
return target;
}
We can then apply ...
This time we are going to declare a class decorator that will add some metadata to a class when we applied to it:
function addMetadata(target: any) {
// Add some metadata
target.__customMetadata = {
someKey: "someValue"
};
// Return target
ret...
We can wrap a class decorator with another function to allow customization:
function addMetadata(metadata: any) {
return function log(target: any) {
// Add metadata
target.__customMetadata = metadata;
// Return target
return target;
...
