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Jeroen W. Pluimers on .NET, C#, Delphi, databases, and personal interests

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Archive for April 16th, 2026

Some pages that have lists of Amazon toplevel domains

Posted by jpluimers on 2026/04/16

Amazon has activities spread across many different countries and regions, heck they even own their own toplevel domain .amazon.

Yesterday in Online tools to test JSONPath Queries (plus a small list of Amazon top level domains) I wrote about the JSON parsing I did for Download your Kindle books soon, because Amazon will block them after February 25, 2025 .

The source of that list is [Wayback/Archive] Amazon operating domains by country. · GitHub [Wayback/Archive] in the file amazon-domains.json.

In the meantime, I finally managed to go through a list of old open browser tabs having more of such lists. Here they are:

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Posted in Development, JavaScript/ECMAScript, JSON, JSONPath, Scripting, Software Development, Web Development | Leave a Comment »

Remember: languages automatically evaluate const expressions

Posted by jpluimers on 2026/04/16

The first tweet below reminded me that few people seem to realise that const expressions are evaluated by the compiler/interpreter into the actual const value. Often this is called constant folding (though that can happen outside constant definitions too!)

Truckloads of source code I have come across in all kinds of languages where people put the calculated values in the expression like described here:

[Wayback/Archive] Kevlin Henney on Twitter: “For example: const int secondsInDay = 24 * 60 * 60; There is no need to calculate it yourself: const int secondsInDay = 86400; Or, related to what I’ve just seen: const int secondsInDay = 86400; // 24 * 60 * 60“.

In languages that support rich enough types, you can even pass a typed constant like timespan, duration or period around:

[Wayback/Archive] David Kerr on Twitter: “@KevlinHenney The general point is well made of choir course. In java, etc you can pass a Duration object around, no need to interpret an in. Type safety, self documenting.”

My recommendation is to use an expression like the first and maybe document the calculated value (for instance for ease of bug hunting) like here

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Posted in Conference Topics, Conferences, Development, Event, Scripting, Software Development | Leave a Comment »