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| function mergeWith (objects, customizer) {
| const [first, ...rest] = objects
| let ret = first
| rest.forEach(a => {
| ret = mergeTo(ret, a, customizer)
| })
| return ret
| }
|
| function mergeTo (a, b, customizer) {
| const ret = {}
| Object.keys(a)
| .concat(Object.keys(b))
| .forEach(k => {
| const v = customizer(a[k], b[k], k)
| ret[k] = typeof v === 'undefined' ? a[k] : v
| })
| return ret
| }
|
| module.exports = mergeWith
|
|
