My first stop is always bookfinder. Doesn't cross-reference every site but it does a good chunk of them. Source: 12 months ago

If an era (say civil war) go to http://bookfinder.com. Now on the front page click Advanced Search. You can select year of publication. So for civil war I would plug in up to 1900. Source: 12 months ago

First you need to learn to grade the book, as value is related directly to condition. Then you can look the book up on bookfinder.com and see what it's worth. But... there's a caveat. There's lots of "script sellers" out there, sellers that don't actually own the book - but which scrape the data, markup the price and offer it for sale, planning to buy it when you do. There's also many utter idiots who will... Source: almost 1 year ago

If you NEED to purchase a book, use bookfinder.com to find the cheapest books. Always verify the ISBN to make sure you get the correct one edition. Source: about 1 year ago

You should also check bookfinder.com. Source: about 1 year ago

Online regex testers and debuggers: Tools like (https://regex101.com/) or (https://regexr.com/) can help you test and debug your regular expressions before integrating them into your Go code. - Source: dev.to / 10 days ago

Use online regex testers: Tools like Regex101 or RegExr can help visualize how your regex matches against test strings, providing explanations and highlighting potential issues. - Source: dev.to / 16 days ago

When thinking about how I might compare an arrangement to the contiguous group of damaged springs, I used regexr.com to experiment with very specific regexs that used the numbers. - Source: dev.to / 5 months ago

There are plenty of online regex tools to test and experiment with regex patterns. Some popular ones include RegExr, RegEx101, and RegexPlanet. - Source: dev.to / 5 months ago

Using regexr.com it at least appears to work as expected. - Source: dev.to / 6 months ago