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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15
votes
8answers
9k 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
792 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 ...
1
vote
5answers
401 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 ...
77
votes
70answers
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 ...
1
vote
1answer
154 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" }); ...
11
votes
1answer
288 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 <...
7
votes
1answer
299 views

Convert Valve KV into JSON

Valve's KV file format is as follows (in pseudo-EBNF): ...
5
votes
2answers
844 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....
7
votes
5answers
425 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 ...
4
votes
15answers
5k 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. ...