Good Ones

goodones.md

Good Ones

Array Diff

const difference = (a1, a2) => a1.filter(x => a2.indexOf(x) == -1)

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Populate Array

Creates array with 1...N elements

[...Array(10).keys()]
//→ [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]

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NodeList to Array

[...document.querySelectorAll('div')]

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Merge

const merge = (...xs) => Object.assign({}, ...xs)

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Limit

const limit = (value, min, max) => Math.min(Math.max(value, min), max)

Map Object

const x = require('xtend')

const mapObject = (obj, cb) => {
  return x(...Object.keys(obj).map(k => {
    const newObj = {}
    newObj[k] = cb(obj[k])
    return newObj
  }))
}