rolandcoops

// quick idea to reduce an array by automatically merging result of iteratee(current, i, src) onto acc
const reduceMerge = (arr, iteratee) =>
  arr.reduce((acc, cur, i, src) => {
    const val = iteratee(cur, i, src)
    // allow falsy returns to result in noop for this iteration
    if (!val) {
      return acc
    } else if (val.constructor === Object) {
      return Object.assign(acc, val)
    }

rolandcoops

const { configureCacheGroups } = require('./webpack.utils')

const cacheGroups = configureCacheGroups({
  'react': ['react', 'react-dom'],
  'lodash': ['lodash'],
  'redux': ['redux', 'react-redux'],
  'semantic-ui': ['semantic-ui-react'],
  'core-js': ['core-js'],
})

rolandcoops

// Round up to nearest base, in base 10. Works for both negative/positive numbers and numbers -1 < n < 1.
// Useful for calculating a sensible/readible graph domain max if you input the max value of your data.
export const roundUpBaseInRange = (n, bases = [1, 2, 4, 5, 6, 8, 10]) => {
  // Store the sign, so we can restore it for the result lateron
  const sign = Math.sign(n)

  // Get modulus (remove sign) for next steps in calculation
  const modulus = Math.abs(n)

  // Calculate base10 exponent (i.e. amount of digits as float instead of integer)