Questions tagged [json]

JavaScript Object Notation is an open standard key-value pair data format. Use this tag for questions that involve parsing, outputting, or otherwise manipulating JSON objects.

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78
votes
73answers
8k views

Print some JSON

This challenge is straightforward, but hopefully, there are plenty of avenues you can approach it: You need to print/return a valid JSON object of at least 15 characters, not counting unessential ...
25
votes
3answers
796 views

Who is the rightful ruler?

Who will rule the realm? You are given a family tree which contains: name, sex, date of birth, date of death and a list of heirs, for each family member. You may use any convenient (nested) list ...
19
votes
9answers
18k views

Extract all keys from an object (json)

Description Given an object (json), write code to extract all the keys from it. This is a question that I really wanted to ask everybody for a long time ago but I did not have time to write it up. It ...
11
votes
21answers
857 views

Minecraft Language Files Updater

In 1.13, Minecraft language files were switched from being a simple multi-line key=value format to JSON. Challenge Write a program converting from the original format returning a JSON string. Input ...
11
votes
1answer
344 views

Help Jason format his JSON

Jason has a big JSON but it's unreadable, so he needs to prettify it. Formatting Spec The JSON has 4 different types: Numbers; Just 0-9 Strings; Double quoted <...
8
votes
2answers
317 views

Smallest possible Scratch 3.0 project file (SB3)

The objective is to make the smallest SB3 file that can simply be imported into Scratch 3.0 without a "The project file that was selected failed to load" error. Any means can be used, like ...
7
votes
5answers
439 views

Network Transparent Boolean Logic Evaluator

Write an expression evaluator for boolean expressions encoded as JSON. Read on for explanation and rules. Motivation: Consider a scenario where two agents (Alice and Bob) are communicating with each ...
7
votes
1answer
321 views

Convert Valve KV into JSON

Valve's KV file format is as follows (in pseudo-EBNF): ...
6
votes
18answers
6k views

Convert JSON string to Key / Value Arrays

Convert JSON (key/value pairs) to two native arrays, one array of keys and another of values, in your language. ...
6
votes
2answers
875 views

HTML2JSON Converter

Edit I have posted a 250 lines reference implementation for review at CR, discussing the major class of the code. Download the complete Visual Studio 2013, .NET 4.5 source code (10 kB) from my server....
1
vote
1answer
158 views

JSON tips: filter objects from array of objects where object name is alpha [closed]

What could be the shortest code for filtering the following array in Javascript without any library? My code is: filtered_obj = _.where(obj, { name: "Alpha" }); ...
1
vote
5answers
452 views

String Array to JSON String

Introduction I've seen throughout the code-golf challenges several simple tasks involving JSON, such as interpreting JSON strings with RegExs, and almost every other manipulation I could think of. In ...
-2
votes
5answers
183 views

Pretty printing JSON

I want format a JSON string into human-readable form. A string like this: ...