如何将点表示法的字符串转换为具有值的嵌套 object？

Question

I was trying to do this with split and reduce but I can't figure it out.

Here is my string and value

const str = "stack.overflow.is.cool"
const value = "Indeed"

I would like to turn this into

{ stack: 
  { overflow: 
    { is: 
      { cool: indeed }
    }
  }
}

Answer 1

With map. Also possible with reduce and recursive function..

 const str = "stack.overflow.is.cool" const value = "Indeed" let obj = {}; let pointer = obj; str.split('.').map( (key, index, arr) => { pointer = (pointer[key] = (index == arr.length - 1? value: {})) }); console.log(JSON.stringify(obj, null, ' '));