When is it better to build custom components instead of using libraries?

Honestly, if you want high-quality results, doing it yourself often leads to better control over the outcome. Using libraries can sometimes introduce complications, especially when updates break things. I generally avoid third-party code unless absolutely necessary. If I can't fix it myself, who will? Just keep in mind that for common tasks, leveraging a well-tested library is usually the better approach.

Generally, I think if it's something complex or I think it’ll take longer to find a library than to just build it, I'll create my own. For example, I once built a custom table display for an ERP system with lots of specific features that existing libraries just didn't support at the time. It worked great for years and fit our needs perfectly.

On the other hand, if I need something simple, I'll whip it up myself. For instance, I created a dashboard component that simply displayed some top 10 lists in minutes, rather than searching for a whole library to do it.

I tend to work smarter, not harder. Sometimes, though, modifying an existing template can be more of a headache than writing something new. And in some cases, it’s just not feasible to build things from scratch, especially if you're dealing with APIs or widely used libraries that provide essential functions. Still, if you’re seeking a challenge, don’t hesitate to try building it yourself; it's great for learning!

You really have to be strategic about it. If your project allows for libraries and they meet your needs, definitely consider using them. Just be cautious not to overload your project with dependencies that can bloat your codebase. For something as intricate as a calendar, careful consideration is key; sometimes, it’s easier to implement it yourself if you can’t easily find a solution that fits.

You really shouldn’t reinvent the wheel unless there’s a compelling reason. If there’s a functional library that can do what you need and is well-maintained, just use it. For example, I had a friend who built a whole charting tool from scratch when there were already loads of options like Apache ECharts that do the job well. Just weigh the investment of time and the benefits.

There are a few important factors to consider. First, think about how central the component is to your product's core functionality. If you're developing a scheduling app, for instance, creating a custom calendar might give you more control and enhance the user experience. But if it's just a minor feature, using a reliable library could save you time and effort.

Another thing to ponder is the overhead of adding external libraries. For example, if you need a simple matrix multiplication, bringing in a massive library like NumPy just for that might introduce unnecessary complexity. Sometimes, it can be quicker to implement a simple function yourself instead.

Also, consider the stability of what you need. For example, if it's a custom data parser that's rarely going to change, building it from scratch might work fine. But for components that require regular updates or bug-fixes, going with a library is likely the better route.