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Lodash _.sortedIndexOf

Overview

The _.sortedIndexOf method in lodash is a utility function that helps you to find the index of a given value in a sorted array. It works by performing a binary search on the input array to efficiently locate the specified value.

To use the _.sortedIndexOf method, you pass it the sorted array you want to search, along with the value you want to find. The method returns the index of the first occurrence of the value in the array, or -1 if the value is not found.

Here is an example of how to use the _.sortedIndexOf method:

import _ from 'lodash';

const myArray = [1, 3, 5, 7, 9];
const index = _.sortedIndexOf(myArray, 5);

console.log(index); // 2

In this example, we create an array of sorted numbers and then use the _.sortedIndexOf method to search for the number 5. The method returns the index of the first occurrence of 5 in the array, which is 2.

One key benefit of using the _.sortedIndexOf method is that it can significantly improve search performance when working with large arrays. Because the method performs a binary search, it will always be more efficient than a linear search when searching for values in a sorted array.

Overall, the _.sortedIndexOf method is a powerful tool for working with sorted arrays in JavaScript, and can help you to write more efficient and effective code.