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dimensionality

v1.0.1

Published

Find the number of dimensions of an array

Downloads

1

Readme

dimensionality

Find the number of dimensions of an array

npm install dimensionality --save

Usage

dimensionality(array[, shallowSearch = false])

Returns the maximum array depth of the array, meaning the maximum number of nests in the nested arrays.

var dimensionality = require('dimensionality');

dimensionality(undefined) // 0
dimensionality(4) // 0
dimensionality([2, 4, 5, 2]) // 1
dimensionality([undefined, null, 2, {}, 'test']) // 1
dimensionality([undefined, null, 2, {}, 'test', []]) // 2
dimensionality([[{}, ['test']]]) // 3
dimensionality([1, [2, [3, [4]]]]) // 4

// shallowSearch example
dimensionality([[4, [5]]]) // 3
dimensionality([[4, [5]]], true) // 2
dimensionality([
  [[1, 2], [3, 4]],
  [[5, 6], [7, 8]],
], true) // 3

ShallowSearch

By default, shallowSearch = false.

If shallowSearch = true, then dimensionality finds the dimension only searching for the first element of the nested array.

This is useful for large data structures that are known to have equal array depth.