util prependDeep.js

5% Statements 1/20

0% Branches 0/18

0% Functions 0/2

6.25% Lines 1/16

Press n or j to go to the next uncovered block, b, p or k for the previous block.


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27  
 
 
3x
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  import { has } from '../../../utils'
import isSchema from './isSchema'
 
let isObject = obj => Object.prototype.toString.call(obj) === '[object Object]'
 
export default function prependDeep(target, source) {
  for (var key in source)
    if (has(source, key)) {
      var sourceVal = source[key],
        targetVal = target[key]
 
      if (targetVal === undefined) {
        target[key] = sourceVal
      } else if (targetVal === sourceVal) {
        continue
      } else if (isSchema(targetVal)) {
        if (isSchema(sourceVal)) target[key] = sourceVal.concat(targetVal)
      } else if (isObject(targetVal)) {
        if (isObject(sourceVal)) target[key] = prependDeep(targetVal, sourceVal)
      } else if (Array.isArray(targetVal)) {
        if (Array.isArray(sourceVal)) target[key] = sourceVal.concat(targetVal)
      }
    }
 
  return target
}