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Concatenate multiple arrays using lodash _.concat
Details
Basic concatenation:
Array 1: [1, 2]
Array 2: [3, 4]
Array 3: [5, 6]
Result: [1, 2, 3, 4, 5, 6]
With nested arrays (auto-flattened):
Array 1: [1, 2]
Array 2: [[3, 4], 5]
Result: [1, 2, 3, 4, 5]
With deduplication enabled:
Array 1: [1, 2, 3]
Array 2: [3, 4, 5]
Result (unique): [1, 2, 3, 4, 5]
Mixed data types:
Array 1: [1, "hello", true]
Array 2: [null, {key: "value"}, [6, 7]]
Result: [1, "hello", true, null, {key: "value"}, 6, 7]
Execution
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Tool usage guide
Concat Arrays is a utility tool that merges up to five arrays into a single array using lodash's _.concat method. It supports optional flattening of nested arrays and deduplication to remove duplicate values, making it ideal for combining data from multiple sources.
Background
A developer has three separate arrays of user IDs from authentication, profile, and activity modules.
Problem
Need to merge these arrays into one for a batch update operation without duplicates.
How to use
Enter each array in the array1, array2, and array3 fields, then enable 'Remove Duplicates' and concatenate.
Outcome
A single array containing all unique user IDs from the three modules, ready for processing.
Background
A data analyst receives sales figures as nested arrays from regional reports, with some duplicate entries.
Problem
The nested structure complicates analysis, and duplicates need to be removed for accurate totals.
How to use
Input the arrays, set flatten mode to 'deep', and enable 'Remove Duplicates' before concatenating.
Outcome
A flattened array with unique sales figures, simplifying further analysis and visualization.
Array concatenation is the process of joining two or more arrays end-to-end to form a new array.
Flatten mode controls nested arrays: 'none' keeps them as is, 'shallow' flattens one level, and 'deep' flattens all nested levels.
Yes, by enabling the 'Remove Duplicates' option, the tool will eliminate duplicate values using strict equality checks.
The tool supports numbers, strings, booleans, null, objects, and arrays, with smart type detection for accurate concatenation.
You can concatenate up to five arrays simultaneously using the array1 to array5 input fields.