How to turn dot notation string into an object in Javascript

Question

I\'m trying to turn a dot notation string into an object, for example given

  [{
      key: \'app.team.instance\',
      value: \'some value1\'
  }, {
               


        

Answer 1

You can use array.prototype.reduce :

  var datas = [ {key: 'app.team.instance', value: 'some value1'}, {key: 'app.team.server.obj', value: 'some value'}, {key: 'app.team.app.some',value: 'some value'}, {key: 'app.service.awesome.more', value: 'more values'}];

var res = datas.reduce((m, o) => {
    var keys = o.key.split('.');
    var cur = m;
    keys.forEach((key, i) => { 
        if (i < keys.length - 1) {
            cur[key] = cur[key] || {};
            cur = cur[key];
        } else {
            cur[key] = o.value;
        }
    });
    return m;
}, {});

console.log(res);