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Lodash _.partition

Overview

Overview:

The lodash _.partition method is a useful utility function that helps to partition an array into two groups based on a predicate function. It returns an array of two sub-arrays where the first sub-array contains elements that pass the predicate function and the second sub-array contains elements that fail the predicate function.

Syntax:

_.partition(array, predicate)

Parameters:

  • array: The array to partition.
  • predicate: The function that is invoked per iteration. It returns true for elements that are to be included in the first sub-array, else false.

Returns:

An array of two sub-arrays, where the first sub-array contains elements that pass the predicate function and the second sub-array contains elements that fail the predicate function.

Example usage:

const arr = [1, 2, 3, 4, 5, 6];

const [evenNumbers, oddNumbers] = _.partition(arr, (num) => num % 2 === 0);

console.log(evenNumbers); // [2, 4, 6]
console.log(oddNumbers); // [1, 3, 5]

In the example above, the _.partition method is used to partition an array of numbers into two sub-arrays, one containing even numbers and the other containing odd numbers.

Search engine optimization:

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