[removed] Object Rename Key

Question

Is there a clever (i.e. optimized) way to rename a key in a javascript object?

A non-optimized way would be:

o[ new_key ] = o[ old_key ];
delete o[ o         


        

Answer 1

If you're mutating your source object, ES6 can do it in one line.

delete Object.assign(o, {[newKey]: o[oldKey] })[oldKey];

Or two lines if you want to create a new object.

const newObject = {};
delete Object.assign(newObject, o, {[newKey]: o[oldKey] })[oldKey];