I have a bunch of object attributes coming in as dot-delimited strings like "availability_meta.supplier.price"
, and I need to assign a corresponding value to record['availability_meta']['supplier']['price']
and so on.
Not everything is 3 levels deep: many are only 1 level deep and many are deeper than 3 levels.
Is there a good way to assign this programmatically in Javascript? For example, I need:
["foo.bar.baz", 1] // --> record.foo.bar.baz = 1
["qux.qaz", "abc"] // --> record.qux.qaz = "abc"
["foshizzle", 200] // --> record.foshizzle = 200
I imagine I could hack something together, but I don't have any good algorithm in mind so would appreciate suggestions. I'm using lodash if that's helpful, and open to other libraries that may make quick work of this.
EDIT this is on the backend and run infrequently, so not necessary to optimize for size, speed, etc. In fact code readability would be a plus here for future devs.
EDIT 2 This is NOT the same as the referenced duplicate. Namely, I need to be able to do this assignment multiple times for the same object, and the "duplicate" answer will simply overwrite sub-keys each time. Please reopen!
What about this?
function convertDotPathToNestedObject(path, value) {
const [last, ...paths] = path.split('.').reverse();
return paths.reduce((acc, el) => ({ [el]: acc }), { [last]: value });
}
convertDotPathToNestedObject('foo.bar.x', 'FooBar')
// { foo: { bar: { x: 'FooBar' } } }
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