@types/d3-array

Statistics

Compute basic statistics such as maximum and mean values of numeric arrays.

import { max, mean } from 'd3-array';

const numbers = [1, 2, 3, 4, 5];
const maximumValue = max(numbers);
const meanValue = mean(numbers);

Searching

Search for a value in a sorted array using binary search, returning the index of the value.

import { bisectLeft } from 'd3-array';

const numbers = [1, 2, 3, 4, 5];
const index = bisectLeft(numbers, 3);

Transformations

Transform arrays by merging multiple arrays into one.

import { merge } from 'd3-array';

const arrays = [[1, 2], [3, 4], [5]];
const mergedArray = merge(arrays);