How to recurse the array into a: {b: {c: {d: "test"}

var test = "a.b.c.d"

how to recursively to

a:{
   b:{
     c:{
        d:"test"
       }
     }
   } 
Feb.22,2022

Loop algorithm:

 {
      var test = "a.b.c.d";
      let arr = test.split('.');

      let newtest = 'test';
      for(let i = arr.length - 1; i >= 0; i--){
         let obj = {};
         obj[arr[i]] = newtest;
         newtest = obj;
      }
      console.log(newtest);
    }
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