ow-lite/lib/number.js

Lightweight replacement for the ow validation library meant for browser usage.

'use strict'

const { func } = require('./symbols')

const numberPredicates = {
  positive: (value) => (value > 0),
  negative: (value) => (value < 0),
  nonNegative: (value) => (value >= 0),
  integer: (value) => (value === (value | 0)),

  [func]: {
    is: (fn) => fn,
    eq: (v) => (value) => (value === v),
    gt: (v) => (value) => (value > v),
    gte: (v) => (value) => (value >= v),
    lt: (v) => (value) => (value < v),
    lte: (v) => (value) => (value <= v)
  }
}

module.exports = {
  predicates: numberPredicates,
  validator: (value) => {
    return typeof value === 'number'
  }
}