I have a very simple block of code:
function toObj(i){
return {
i: i
};
}
numObj=s=>s.map(toObj)
When I pass an array of numbers to numObj, I expect the key and the value to match the argument that was passed in. For example, I would expect the following result:
numObj([1, 2, 3, 4]) => [{1: 1}, {2: 2}, {3: 3}, {4: 4}]
instead, I get this:
numObj([1, 2, 3, 4]) => [{i: 1}, {i: 2}, {i: 3}, {i: 4}]
How can I set the key of the returned object to be the argument that was passed in?
Use computed property names to create the key from a value:
const toObj = i => ({ [i]: i })
const numObj = arr => arr.map(toObj)
const result = numObj([1, 2, 3, 4])
console.log(result)