I have a list of objects in the following way:
obj = [ { a:[1,2,3] }, { b:[4,5,6] }, { c:[7,8,9] } ]
How do I get the correspoding array for a key using javascript?
Eg. For b, I would get [4,5,6]. I need a function where I can give the key as input and it returns me the corresponding array associated with it.
You can use find() and Object.keys(). Compare the first element of keys array to the given key.
const arr = [ { a:[1,2,3] }, { b:[4,5,6] }, { c:[7,8,9] } ];
const getByKey = (arr,key) => (arr.find(x => Object.keys(x)[0] === key) || {})[key]
console.log(getByKey(arr,'b'))
console.log(getByKey(arr,'c'))
console.log(getByKey(arr,'something'))Collected from the Internet
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