How to compare arrays in JavaScript?

To compare arrays, loop through them and compare every value: Comparing arrays: Usage: You may say “But it is much faster to compare strings – no loops…” well, then you should note there ARE loops. First recursive loop that converts Array to string and second, that compares two strings. So this method is faster than use … Read more

Converting JSON data to Java object

I looked at Google’s Gson as a potential JSON plugin. Can anyone offer some form of guidance as to how I can generate Java from this JSON string? Google Gson supports generics and nested beans. The [] in JSON represents an array and should map to a Java collection such as List or just a plain Java array. The {} in JSON … Read more

Remove properties from objects (JavaScript)

To remove a property from an object (mutating the object), you can do it like this: Demo For anyone interested in reading more about it, Stack Overflow user kangax has written an incredibly in-depth blog post about the delete statement on their blog, Understanding delete. It is highly recommended. If you’d like a new object with all the keys of the original … Read more

Parsing JSON with Unix tools

There are a number of tools specifically designed for the purpose of manipulating JSON from the command line, and will be a lot easier and more reliable than doing it with Awk, such as jq: You can also do this with tools that are likely already installed on your system, like Python using the json module, and so … Read more

What is the “right” JSON date format?

JSON itself does not specify how dates should be represented, but JavaScript does. You should use the format emitted by Date‘s toJSON method: 2012-04-23T18:25:43.511Z Here’s why: It’s human readable but also succinct It sorts correctly It includes fractional seconds, which can help re-establish chronology It conforms to ISO 8601 ISO 8601 has been well-established internationally for more than a decade ISO 8601 is endorsed … Read more