# Semi usefull random Symbol stuff

**URL:** <https://forum.kirupa.com/t/semi-usefull-random-symbol-stuff/650171>\
**Category:** Uncategorized\
**Created:** [December 23, 2021, 7:37am UTC](https://forum.kirupa.com/t/semi-usefull-random-symbol-stuff/650171 "2021-12-23T07:37:34Z")\
**Posts on this page:** 1\
**Page:** 1

<div class="post-metadata">

**Author:** ![steve.mills](https://yyz1.discourse-cdn.com/flex011/user_avatar/forum.kirupa.com/steve.mills/32/14961_2.png) [@steve.mills](https://forum.kirupa.com/u/steve.mills)\
**Post date:** [December 23, 2021, 7:37am UTC](https://forum.kirupa.com/t/semi-usefull-random-symbol-stuff/650171/1 "2021-12-23T07:37:34Z")

</div>

Hey guys,  
I’ve been playing around with some JS Symbol stuff over the Chrissy holly’s and have made up this “class” or should we call it a function that returns an object.

It does this:

- adds entries to the object with Symbols as the keys
- has a Symbol.iterator to allow iteration of the entries with their original name as the the “key” value and not the Symbol
- allows multiple assignments with the same key e.g. “name”
- has a get method to allow access entries via index (first to last).

I don’t have a use for it right now but I may later, if anyone can think of how this may be useful to them please share the use cases.

Merry Christmas,  
Steve

```auto
let symObj = function(){return {
  add: function(key, val){
      let symbol = Symbol(key);
      this[symbol] = val; 
  },
  addAll: function(arr){
     for(let i of arr){
       let [k,v] = i;
       let symbol = Symbol(k)
       this[symbol] = v;
     }
  },
  regex: /\((.*)\)/,
  
  get: function(i){
    let vals = Object.getOwnPropertySymbols(this);
    let keys = vals.splice(1);
    let k = keys[i].toString();
    let j = k.match(this.regex)[1];
    let v = this[keys[i]];
    return JSON.parse(`{"${j}" : "${v}"}`)
  },
  
    * [Symbol.iterator] () { 
        let symbols = Object.getOwnPropertySymbols(this);
        for (let i = 1; i < symbols.length; i++) {
            let k = symbols[i].toString();
            let j = k.match(this.regex)[1]
            let v = this[symbols[i]];
            yield JSON.parse(`{"${j}" : "${v}"}`)
        }
    }
  };
}
let users = symObj();
users.add('name', 'Steve')
users.add('name', 'Dave')
users.get(1);
users.addAll([['name', 'Jim'],['name', 'Howard']]);

for(let i of users){
  console.log(i)
}
let one = users.get(1);
let jp = JSON.stringify(one);
console.log(jp)

```