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Flatten Depth Array

Flatten array to specified depth using lodash _.flattenDepth

Flatten an array up to a specified depth level (nesting flattened to the specified level).

Features:

  • Accepts deeply nested JSON arrays of any depth
  • Customizable flatten depth (1-10 levels)
  • Precise control over flattening level
  • Handles arrays with mixed data types
  • Uses lodash _.flattenDepth for controlled flattening

Examples:

  • Depth 1: [1, [2, [3, [4]]], 5] → [1, 2, [3, [4]], 5]
  • Depth 2: [1, [2, [3, [4]]], 5] → [1, 2, 3, [4], 5]
  • Depth 3: [1, [2, [3, [4]]], 5] → [1, 2, 3, 4, 5]

Use Cases:

  • Controlled Transformation: Flatten to a specific level while preserving deeper structure
  • Data Processing: Process nested arrays level by level
  • Partial Flattening: Reduce nesting without losing all structure
  • Progressive Operations: Apply transformations at specific nesting levels

Enter a valid JSON array with deeply nested elements

Number of levels to flatten (1-10)

Key Facts

Category
Data Processing
Input Types
textarea, number
Output Type
text
Sample Coverage
4
API Ready
Yes

Overview

The Flatten Depth Array tool flattens nested JSON arrays to a specified depth using lodash's _.flattenDepth function. It provides precise control over flattening levels, allowing you to reduce nesting while preserving deeper structures for data processing tasks.

When to Use

  • •When you need to flatten an array to a specific depth while keeping deeper nested elements intact.
  • •For processing nested arrays level by level in data transformation or analysis workflows.
  • •To partially flatten arrays without losing all hierarchical structure.

How It Works

  • •Enter a valid JSON array with nested elements in the input field.
  • •Set the desired flatten depth between 1 and 10 (defaults to 2 if not specified).
  • •The tool applies lodash _.flattenDepth to flatten the array to the given depth.
  • •Receive the flattened array as text output.

Use Cases

Flattening nested API response data for easier parsing and display.
Preparing hierarchical data structures for database storage or further processing.
Simplifying complex arrays in JavaScript applications for rendering or calculations.

Examples

1. Partial Flattening for Data Inspection

Background
A developer has a nested array from a configuration object.
Problem
Need to flatten only the first level to examine immediate sub-arrays without altering deeper nesting.
How to Use
Input the array [1, [2, [3, [4]]], 5] and set depth to 1.
Outcome
The array is flattened to [1, 2, [3, [4]], 5], preserving the innermost structure.

2. Full Flattening for Analysis

Data Analyst
Background
Working with deeply nested data from a JSON file for statistical analysis.
Problem
Require a completely flattened array to compute aggregates or visualize data.
How to Use
Enter the array [1, [2, [3, [4]]], 5] and set depth to 3.
Example Config
depth: 3
Outcome
The array is fully flattened to [1, 2, 3, 4, 5], ready for analysis.

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FAQ

What is the maximum depth allowed?

You can set the depth from 1 to 10 levels.

What input format is required?

The input must be a valid JSON array with any level of nesting.

Can it handle arrays with mixed data types?

Yes, it processes arrays containing numbers, strings, and nested arrays.

Is the depth parameter mandatory?

No, depth is optional and defaults to 2 if not provided.

What if I provide invalid JSON?

The tool will return an error; ensure your input is a properly formatted JSON array.

API Documentation

Request Endpoint

POST /en/api/tools/flatten-depth-array

Request Parameters

Parameter Name Type Required Description
array textarea Yes Enter a valid JSON array with deeply nested elements
depth number No Number of levels to flatten (1-10)

Response Format

{
  "result": "Processed text content",
  "error": "Error message (optional)",
  "message": "Notification message (optional)",
  "metadata": {
    "key": "value"
  }
}
Text: Text

AI MCP Documentation

Add this tool to your MCP server configuration: 

{
  "mcpServers": {
    "elysiatools-flatten-depth-array": {
      "name": "flatten-depth-array",
      "description": "Flatten array to specified depth using lodash _.flattenDepth",
      "baseUrl": "https://elysiatools.com/mcp/sse?toolId=flatten-depth-array",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

You can chain multiple tools, e.g.: `https://elysiatools.com/mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp`, max 20 tools.

If you encounter any issues, please contact us at [email protected]