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JavaScript - custom compare JSONs function

8 points
Created by:
Mikolaj
519

In this article, we're going to have a look at how to write own function to compare JSONs. Approach used in this article encloses each entity with object that keeps previous and current values with types and kind of change.

Example result:

Where:

  • status can be one of: unchanged, updated, created or deleted,
  • old and new type: array, object, simple or null,
  • old and new value: simple type object, array with enclosed entities that describe nested objects or null.

Note: read this article to see json difference visualization.

Run below example to see details. 

 

Reusable example

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This section presents simple logic that returns object with difference information.

 

See also

Edit
  1. JavaScript - JSON difference visualization

  2. JavaScript - display object as expandable tree 

Alternative titles

  1. JavaScript - make diff on JSONs
  2. json diff operation in JavaScript
  3. JavaScript - own compare JSONs function
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JavaScript - JSON

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