sir air :
I am looking for best ways of doing this. I have two arrays (array 1d and array 2d):
key = [1,2,3];
value = [['a','b','c'], ['d','e','f'], ['g','h','i']]
The end result I want is an array of map:
[{1:a,2:b,3:c},{1:d,2:e,3:f},{1:g,2:h,3:i}]
How do I do it the most efficient/clean way using lodash? Thanks!
Ori Drori :
Map the values array, and use _.zipObject()
to combine the with the keys with the keys:
const keys = [1,2,3];
const values = [['a','b','c'], ['d','e','f'], ['g','h','i']]
const result = values.map(v => _.zipObject(keys, v))
console.log(result)
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.15/lodash.js"></script>
If you use lodash/fp you can generate a function with _.flow()
that curries _.zipObject()
with the keys
, and passes it to _.map()
. Now you can call the function with the values
to get an array of objects:
const fn = _.flow(_.zipObject, _.map)
const keys = [1,2,3];
const values = [['a','b','c'], ['d','e','f'], ['g','h','i']]
const result = fn(keys)(values)
console.log(result)
<script src='https://cdn.jsdelivr.net/g/lodash@4(lodash.min.js+lodash.fp.min.js)'></script>