math-array

Math utility to calculate with two arrays.

Install

$ npm install math-array

Usage

import {
  add,
  sub,
  mul,
  div
} from 'math-array'

// Add 2 items
add([1, 2], [3, 4])   // [4, 6]
add([1, 2], 3)        // [4, 5]
add(3, [1, 2])        // [4, 5]
add(1, 2)             // Error, at least one array is required

// Sub 2 items
sub(1, [1, 2])        // Error, the first argument must be an array
sub([1, 2], 1)        // [0, 1]
sub([1, 2], [1, 2])   // [0, 0]

// Multiply 2 items
mul([1, 2], [1, 2])   // [1, 4]

// Divide 2 items
div([1, 2], [0, 1])   // Error, divide by zero

<method>(a, b, ensureNumber)

• a Array.<Number>
• b Array.<Number>
• ensureNumber Boolean=false math-array manipulate arrays by simply adding, multiplying items. If true, the returned value will be cleaned, and every item which is not a number will be removed.

mul([1, 2], [1, undefined])         // [1, NaN]
mul([1, 2], [1, undefined], true)   // [1, <1 empty item>]

License

MIT