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Drop last N items from array using lodash _.dropRight
Details
This tool removes a specified number of elements from the end of an array using lodash's _.dropRight method.
Example 1: Drop last 2 items
Input: [1, 2, 3, 4, 5]
n: 2
Output: [1, 2, 3]
Example 2: Drop last 1 item (default)
Input: ['a', 'b', 'c', 'd']
n: 1
Output: ['a', 'b', 'c']
Example 3: Drop 0 items
Input: [10, 20, 30, 40]
n: 0
Output: [10, 20, 30, 40]
Example 4: Drop more than array length
Input: [1, 2, 3]
n: 10
Output: []
n is greater than array length, returns empty array []n is 0, returns a copy of the original arrayExecution
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Tool usage guide
The Drop Right Items tool uses lodash's _.dropRight method to remove a specified number of elements from the end of an array. It provides a quick and reliable way to truncate arrays while preserving data types and structure.
Background
An array contains daily sales figures, but the last two days are incomplete and should be excluded from the report.
Problem
The array has extra elements that skew the analysis.
How to use
Enter the array [1500, 2000, 1800, 2200, 1900] and set n to 2.
Array: [1500, 2000, 1800, 2200, 1900], n: 2Outcome
The tool returns [1500, 2000, 1800], removing the last two sales figures.
Background
During debugging, an array of error logs has a final entry that is a system-generated placeholder.
Problem
The array includes an irrelevant last element.
How to use
Input the array ['Syntax error', 'Null pointer', 'Timeout', 'Debug info'] and use n=1.
Array: ['Syntax error', 'Null pointer', 'Timeout', 'Debug info'], n: 1The default is 1, meaning it drops the last item by default.
Yes, setting n to 0 returns a copy of the original array without any changes.
If n is greater than the array length, the tool returns an empty array.
No, it returns a new array; the input array remains unchanged.
It supports any valid JSON array, including numbers, strings, objects, and nested arrays.
Outcome
The output is ['Syntax error', 'Null pointer', 'Timeout'], with the last item dropped.