documenting json object

documenting json objects

function recurse(o ){
  let keys=[];
  debugger
  if(typeof(o)=="number"){
    keys.push('(number)');
  } else if (typeof(o)=="string"){
    try{
      JSON.parse(o);
      keys.push('(jsonstring)');
    } catch(e){
      keys.push('(string)');      
    }
  } else if (typeof(o)=="object"){
    if (!o) {
      // null is also object
      keys.push('');
    } else if (Array.isArray(o)){
      let allKeys = [];
      let allUniqueKeys = {};
      o.forEach(function(eachElement){
        let recKeys = recurse(eachElement);
        recKeys.forEach(function (eachRecKey){
          allUniqueKeys['[].'+eachRecKey]=1;
        });
      });
      keys.push.apply(keys, Object.keys(allUniqueKeys));
    } else {
      Object.keys(o).forEach(function(eachKey){
        let recKeys = recurse(o[eachKey]);
        recKeys.forEach(function(eachRecKey){
          if(eachRecKey[0]=='('){
            //handling primary data types
            keys.push(eachKey+' '+eachRecKey);
          } else if (eachRecKey[0]=='[') {
            //handling array data type
            keys.push(eachKey+''+eachRecKey);
          }else {
            //handling json object
            keys.push(eachKey+'.'+eachRecKey);
          }          
        });
      });
    }
  }
  return keys;
}

var test = {c:{f:[9,10,11]}}
console.log(JSON.stringify(recurse(test),null,4))