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Data Processing

Last Item

· Last updated:2026-01-26

Get the last item from an array using lodash _.last

Details

What this tool helps you do

Return the final element of a JSON array.

Highlights:

  • Uses lodash _.last
  • Works with any data type
  • Returns a JSON-formatted value

Example:

  • Array: ["a", "b", "c"]
  • Result: "c"

Execution

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Samples

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Written by the Elysia Tools team
Data Processing130
Array60
Lodash53

Tool usage guide

Learn when to use this tool, what it supports, and how real users apply it.

Key facts

Category
Data Processing
Input types
textarea
Output type
text
Sample coverage
4
API ready
Yes

Overview

The Last Item tool extracts the final element from a JSON array using the lodash _.last function. It provides a quick and reliable way to retrieve the tail end of any array, supporting all data types and returning JSON-formatted output.

When to use

  • When you need to get the last element from a list in JSON data without manual indexing.
  • When processing arrays in data workflows where the array length is dynamic or unknown.
  • When simplifying array operations in scripts or applications to avoid off-by-one errors.

How it works

  1. 1Input a valid JSON array into the textarea field provided.
  2. 2The tool applies the lodash _.last function to the array.
  3. 3It returns the last element as a JSON-formatted value for immediate use.

Use cases

  • Extracting the most recent entry from a time-series data array in analytics.
  • Retrieving the last element in a list for pagination or navigation in web applications.
  • Simplifying data processing by accessing the tail of arrays in JSON-based workflows.

Examples

1. Extract Last Sales Figure

Data Analyst

Background

A data analyst has a JSON array of daily sales figures and needs to find the latest value for reporting.

Problem

Manually counting array indices is inefficient and prone to errors with large datasets.

How to use

Enter the sales array, such as [1500, 2000, 1800, 2200], into the input field.

Outcome

The tool returns 2200, the last element, ready for use in dashboards or reports.

2. Get Last User ID from API Response

Web Developer

Background

A web developer receives a JSON array of user IDs from an API and needs to access the last one for a feature.

Problem

The array length varies, making it hard to hardcode indices without risking errors.

How to use

Paste the array from the API response, like [101, 102, 103, 104], into the tool.

Outcome

The output is 104, allowing seamless integration into the application logic.

FAQ

What does this tool do?

It returns the last item from a JSON array using the lodash _.last function.

How do I use it?

Paste your JSON array into the input field, and the tool will output the last element instantly.

What data types are supported?

It works with any data type in the array, such as strings, numbers, objects, or nested arrays.

Is there a limit on array size?

No, it can handle arrays of any length, from small lists to large datasets.

What happens if the array is empty?

It returns undefined, as there is no last element to extract.

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