What is memoization, and how can it be used in

ngular for performance improvement?

Memoization:

technique to cache the results of expensive function calls and return the cached result

when inputs are the same.

How it helps:

• Avoids recalculating heavy operations on every change detection.
• Improves performance for pure functions or selectors.

✅ Example in Angular:

const memoizedFunction = memoize((input) => {

// expensive calculation

return result;

});

this.result = memoizedFunction(input);

You can use libraries like lodash's _.memoize or write your own.

ngular Module System