JavaScript Nested Array Search

This script allows you to search nested arrays and check if an element (child) exists.

Why use it?

If you use AJAX to send/receive data from a backend, you might find yourself constantly writing code that checks data existence. I wrote this to use within my own applications, it clears up my code, and prevents errors when I'm trying to JSON data from AJAX response.

Features

Simple & Easy to add to your projects.
Cleaner code, at least for me...
Lower the risk of errors that break your code.
Ability to use callback functions that are only called when child in found in nest.

How to use

There are two ways that you can use the function.

Example Array

var data = {
  things: {
    books: {
      count: 1
    }
  }
};

Using a callback function

The callback function is only called when the child is found in parent.

childSearch(data, "things.books.count", function(element) {
	//Do something with element
});

Normal function call

Returns a boolean depending on if the child was found in parent.