Lodash _.chunk() Method

Lodash _.chunk() function is used to break the array into small chunks. Each chunk is an array of sizes as given.

Syntax:

_.chunk(array, size);

Parameters:

• array: An array to be processed by chunk function.
• size: This describes the size of the chunk.

Return Value:

It returns the array of chunks that is also an array.

Example 1: In this example, we are breaking the array by passing size ‘1’ into the _.chunk() method.

Javascript

// Requiring the lodash module
// in the script
const _ = require("lodash");
let arr = [1, 2, 3, 4, 5, 6];

// Making chunks of size 1
console.log(_.chunk(arr, 1))

Output:

OUTPUT EXAMPLE 1

Example 2: In this example, we are breaking the array by passing size ‘3’ into the _.chunk() method. The size of chunk can be varied and array of different data type can be used with chunk function.

Javascript

// Requiring the lodash module
// in the script
let _ = require("lodash");
let arr = [1, 2, 3, 4, 5, 6,
    "a", "b", "c", "d"];
console.log("Before: ", arr)

// Making chunks of size 3
console.log("After: ", _.chunk(arr, 3))

Output:

Example 3: In this example, we are breaking the 2d array by passing size ‘2’ into the _.chunk() method. Using array of array with chunk.

Javascript

// Requiring the lodash module
// in the script.
let lodash = require("lodash");
let arr = [
    [1, 2, 3],
    [4, 5, 6, 7, 8],
    [9, 10, 1, 2]
];

console.log("Before: ", arr)
console.log("After: ", lodash.chunk(arr, 2))

Output:

Example 4: In this example, we are breaking the array of object by passing size ‘1’ into the _.chunk() method.

Javascript

let lodash = require("lodash");
let arr = [
    { "a": 1, "b": 2, "c": 3 },
    { "d": 1, "e": 2, "f": 3 },
    { "d": 1, "e": 2, "f": 3 }
];

// Array before breaking in to chunks
console.log("Before: ", arr)

// Printing the first element
// of the chunk as size 1
console.log("After: ",
    lodash.chunk(arr, 1)[0]);

Output :