RocketChat/Rocket.Chat

import type { RenderableProps } from 'preact';
import { Component } from 'preact';

export abstract class MemoizedComponent<P extends Record<string, unknown>, S> extends Component<P, S> {
    shouldComponentUpdate(nextProps: RenderableProps<P>) {
        const { props } = this;

        for (const key in props) {
            if (props[key] !== nextProps[key]) {
                return true;
            }
        }

        for (const key in nextProps) {
            if (!(key in props)) {
                return true;
            }
        }

        return false;
    }
}