ashish-r
/ nestedObjValue.js
Last active
April 3, 2019 17:30
Safely access value from a nested object
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| //Param1: Nested Object | |
| //Param2: Array of keys in the desired order | |
| //Return: Final value from given object based on the given key order if exists, else undefined | |
| function nestedObjValue(obj, keyOrder){ | |
| return keyOrder.reduce((a,b) => typeof a !== 'object' || !a ? undefined : a[b] , obj) | |
| } | |
| //Examples | |
| nestedObjValue({a: {b: {c : {d: {e: 3}}}}}, ['a','b', 'c', 'd', 'e']) //3 |
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