は、以下のようにIダミーJSON形式を有するJSON

Question

内部の利用可能な値に応じて、特定の形式の文字列にネストされたJSONを変換する：

{ 
    "a":"guig", 
    "b":"khih", 
    "c":[ 
     { 
     "k1":"ert", 
     "k2":"uii" 
     }, 
     { 
     "k1":"ert1" 
     }, 
     { 
     "k1":"ert2", 
     "k2":"uii2" 
     }], 
    "d":{ 
     "e":"yfyuf", 
     "f":[ 
     { 
      "kk1":"ert", 
      "kk2":"uii" 
     }, 
     { 
      "kk1":"ert1", 
      "kk2":"uii1" 
     }, 
     { 
      "kk1":"ert2", 
      "kk2":"uii2" 
     } 
     ] 
    }, 
    "h":78767 
    }, 
    { 
    "a":"guig", 
    "b":"khih", 
    "c":[ 
     { 
     "k1":"ert" 
     }, 
     { 
     "k1":"ert1", 
     "k2":"uii" 
     }, 
     { 
     "k1":"ert2", 
     "k2":"uii2" 
     }], 
    "d":{ 
     "e":"yfyuf", 
     "f":[ 
     { 
      "kk1":"ert", 
      "kk2":"uii" 
     }, 
     { 
      "kk1":"ert1", 
      "kk2":"uii1" 
     } 
     ] 
    }, 
    "i":78767 
    }, 
..... 

私は文字列に上記JSONを変換する形式は次の（基本的にCSV互換ここで第一ラインがそれのヘッダ）になります：C1のような

a, b, c1_k1, c2_k1, c3_k1, c1_k2, c2_k2, c3_k2, d_e, d_f1_kk1, d_f2_kk1, d_f3_kk1, d_f1_kk2, d_f2_kk2, d_f3_kk2, h, i 
guig, khih, ert, ert1, ert2, uii,  , uii2, yfyuf, ert,  ert1,  ert2,  uii,  uii1,   , 78767, 
guig, khih, ert, ert1, ert2,  , uii , uii2, yfyuf, ert,  ert1,  ert2,  uii,  uii1,   ,  ,78767, 

フィールド.. Cnは同じくらい利用可能であり、キーの重複として来る値は、空のセルのための余分なコンマを追加する必要があるロジックを提示されていませんどこ。 1

ItrStr=function(k,h) { 
     if(typeof k == "string"){ 
      itsLine+= k+","; 
      itsHdr += h+","; 
     }else if(k && k.length){ 
      ItrArr(k); 
     } else{ 
      ItrObj(k); 
     } 
    }, 
    ItrArr=function(k) { 
     if(k.length){ 
      k.forEach((o)=>{ 
       ItrStr(o,""); 
      }); 
     }else{ 
      ItrObj(k); 
     } 
    }, 
    ItrObj=function(k) { 
     if(k){ 
      let itsKs=Object.keys(k); 
      itsKs.forEach((o)=> { 
       let k1 = k[o]; 
       ItrStr(k1,o); 
      }); 
     }else { 
      itsLine += ","; 
      itsHdr += ","; 
     } 
    }; 
let ttp=inputJson; 
      itsLine=""; 
      ItrObj(ttp); 
      itsLine=itsLine.replace(/\r/g,"").replace(/\n/g,"")+"\n"; 
      if(!isHdrWrote){ 
       fs.appendFile(dir,itsHdr); 
       isHdrWrote=true; 
      }else{ 
       fs.appendFile(dir,itsLine); 
      } 

ロジック：2

findObjectByHDR = function(obj) { 
     if(!obj){ return "" } 
     if(Array.isArray(obj)) { 
      obj.forEach((o)=>{ 
       if(o){ 
        findObjectByHDR(o); 
       } 
      }); 
     }else{ 
      for(let i in obj) { 
       if(obj.hasOwnProperty(i)){ 
        if(typeof obj[i] == "string" || typeof obj[i]== "number"){ 
         if(i.length == 1){ 
          console.log("i: ",i," : ",obj); 
         } 
         if(agrtHdr.indexOf(i)<0){ 
          agrtHdr.push(i); 
         }/*else { 
          if(addDups[i]){ 
           addDups[i]++; 
          }else{ 
           addDups[i]=0; 
          } 
          agrtHdr.push(addDups[i]+"---"+i); 
         }*/ 
        }else if(Array.isArray(obj[i])) { 
         obj[i].forEach((o)=>{ 
          if(o){ 
           //console.log("arr",o); 
           findObjectByHDR(o); 
          } 
         }); 
        }else { 
         for(let i1 in obj[i]) { 
          if(obj[i].hasOwnProperty(i1)){ 
           if(typeof obj[i][i1] == "string" || typeof obj[i][i1]== "number"){ 
            if(agrtHdr.indexOf(i1)<0){ 
             agrtHdr.push(i1); 
            } 
           }else{ 
            findObjectByHDR(obj[i][i1]); 
           } 
          } 
         } 
        } 
       } 
      } 
     } 
    }, 
    findObjectByLBL = function(obj,lbl) { 
     if(!obj){ return "" } 
     if(Array.isArray(obj)) { 
      obj.forEach((o)=>{ 
       if(o){ 
        findObjectByLBL(o,lbl); 
       } 
      }); 
     }else if(typeof obj[lbl] == "string" || typeof obj[lbl]== "number"){ 
      return ""+obj[lbl]; 
     } 
     else if(typeof obj != "string" && typeof obj!= "number") { 
      for(let i in obj) { 
       if(obj.hasOwnProperty(i)){ 
        if(Array.isArray(obj[i])) { 
         obj[i].forEach((o)=>{ 
          if(o){ 
           findObjectByLBL(o,lbl); 
          } 
         }); 
        }else if(obj[i]){ 
         if(typeof obj[i] != "string" && typeof obj[i]!= "number"){ 
          findObjectByLBL(obj[i],lbl); 
         } 
        } 
       } 
      } 
     } 
    } 

let ttp=inputJson; 
       itsHdr=""; 
       var crntLin=[]; 
       if(!dtRed){ 
        findObjectByHDR(ttp); 
       } 
       if(dtRed){ 
        for(let ik=0;ik<agrtHdr.length;ik++){ 
         let iitln=findObjectByLabel(ttp,agrtHdr[ik]); 
         if(!iitln){ 
          console.log(ik,":",lineNr,"--",agrtHdr[ik]," : agrtHdr: "," : ",iitln); 
         } 
         if(iitln){ 
          crntLin.push(iitln.replace(/\r/g,"").replace(/\n/g,"")); 
         }else{ 
          crntLin.push(""); 
         } 
        } 
        fs.appendFile(dir,crntLin.join(",")+"\n"); 
       } 

任意のキーの値は、私が試み失敗ロジック

ロジック以下の通り

アレイ、オブジェクトまたは文字列を使用でき

Answer 1

私は以下のアプローチを試してみました：

var dir = path.join(__dirname,'./slack.csv'), 
    jsn=require(path.join(__dirname,'./slack.json')), 
    itsHdrAll=[], 
    itsHdrAllAr=[], 
    finlHdr=[], 
    findObjectByHDR = function(){ 
     let obj=arguments[0]; 
     let arg1=arguments[1]; 
     if(Array.isArray(obj)){ 
      obj.forEach((o,i)=>{ 
       let crntProp=arg1?arg1:[]; 
       crntProp.push({cameFrm:"Arr",ind:i}); 
       findObjectByHDR(o,crntProp) 
      }); 
     }else{ 
      for(let k in obj) { 
       if(obj.hasOwnProperty(k)){ 
        if(typeof obj[k] == "string" || typeof obj[k] == "number"){ 
         let arg1=arguments[1]; 
         let itsHdr=""; 
         if(arg1){ 
          arg1.forEach(o=>{ 
           if(o.cameFrm=="Arr"){ 
            if(o.ind !=0){ 
             itsHdr=itsHdr.substring(0,itsHdr.length-4) + o.ind+"___"; 
            }else{ 
             itsHdr+= o.ind+"___"; 
            } 
           }else if(o.cameFrm=="Obj"){ 
            itsHdr+= o.prop+"___"; 
           } 
          }); 
         } 
         itsHdr += k+"___"; 
         itsHdrAll.push(itsHdr); 
        }else { 
         let crntProp=arg1?arg1:[]; 
         crntProp.push({cameFrm:"Obj",prop:k}); 
         findObjectByHDR(obj[k],crntProp) 
        } 
       } 
      } 
     } 
    }; 
    for(let j=0;j<jsn.length;j++){ 
     findObjectByHDR(jsn[j]); 
     itsHdrAllAr.push(itsHdrAll); 
     itsHdrAll=[]; 
    } 
    itsHdrAllAr.forEach(o=>{ 
     o.forEach(o1=>{ 
      if(finlHdr.indexOf(o1)<0){ 
       finlHdr.push(o1); 
      } 
     }); 
    }); 
    finlHdr=finlHdr.map(o=>{ 
     return o.substring(0,o.length-3); 
    }); 
    finlHdr.sort(); 
    console.log("finlHdr: ",finlHdr); 
    fs.appendFile(dir,finlHdr.join(",")+"\n");