Compare Pros and Cons Side by Side Create a structured pros and cons comparison to evaluate decisions clearly.

Under the hood, this tool relies on React for building the user interface and managing state changes. It uses the `useState` hook to store data in multiple states, including the title of the decision, pros and cons lists, and new pro and con inputs. The `useCallback` hook is used to memoize functions that update these states, such as adding or removing items from the pros and cons lists, and updating the weights of individual items. When a user interacts with the tool, such as clicking the "+" button to add a new pro or con, the corresponding callback function is executed, updating the relevant state and triggering a re-render of the component.

The tool's data structure consists of two arrays of objects, one for pros and one for cons, where each object represents an item with a unique id, text description, and weight. The weights are used to calculate the total score for each list, which is then displayed in the visual balance indicator. This indicator uses CSS styles to create a horizontal bar that fills according to the relative scores of the pros and cons lists. When a user exports their list to the clipboard, the tool uses the `navigator.clipboard.writeText` API to write a formatted string containing the title, pros and cons lists, and verdict.

The verdict is determined by comparing the total scores of the pros and cons lists, with three possible outcomes: "pro" if the pros score higher, "con" if the cons score higher, or "neutral" if the scores are equal. The tool also features a clear all button that uses the `setPros` and `setCons` state update functions to reset the lists to their initial empty state. By using React's built-in hooks and browser APIs, this tool provides an efficient and user-friendly way to create and manage pros and cons lists.

The code is written in TypeScript, which provides type checking and other features that help catch errors early in the development process. The use of specific technologies like React and TypeScript demonstrates a high level of expertise in building complex web applications. Additionally, the tool's implementation of a weighted scoring system and visual balance indicator showcases a deep understanding of algorithms and data structures.

The export functionality uses a plain text format to represent the pros and cons list, with each item on a new line and the verdict at the end. This format is easy to read and understand, making it simple for users to share their lists with others or use them in other applications. Overall, the tool's technical implementation is a key factor in its effectiveness as a decision-making aid.