Question

我正在尝试将'_x'添加到每个对象键，并'_y'添加到每个对象值。这是代码：

var data = {
  "glossary": {
    "title": "example glossary",
    "GlossDiv": {
      "title": "S",
      "GlossList": {
        "GlossEntry": {
          "ID": "SGML",
          "SortAs": "SGML",
          "GlossTerm": "Standard Generalized Markup Language",
          "Acronym": "SGML",
          "Abbrev": "ISO 8879:1986",
          "GlossDef": {
            "para": "A meta-markup language, used to create markup languages such as DocBook.",
            "GlossSeeAlso": "GMLXML"
          },
          "GlossSee": "markup"
        }
      }
    }
  }
}

function treee(data) {
  Object.keys(data).map( function (key) {
    if(Object.keys(data[key]).length == 0){
      data[key] =  {[key + "_x"]: data[key] + "_y"};
    }
    else{
      data[key] =  { [key + "_x"]: treee(data[key]) };
    }
  });
}

它不起作用，我不知道为什么。你能告诉我什么错吗？

Answer 1

基本上你需要新密钥而不是旧密钥并删除实际密钥。

另一部分是改变内部对象，如果必要的话。

function treee(data) {
    Object.keys(data).map(function (key) {
        if (data[key] && typeof data[key] === 'object') {
            treee(data[key]);
        }
        data[key + '_x'] = typeof data[key] === 'string' ? data[key] + '_y' : data[key];
        delete data[key];
    });
}

var data = { glossary: { title: "example glossary", GlossDiv: { title: "S", GlossList: { GlossEntry: { ID: "SGML", SortAs: "SGML", GlossTerm: "Standard Generalized Markup Language", Acronym: "SGML", Abbrev: "ISO 8879:1986", GlossDef: { para: "A meta-markup language, used to create markup languages such as DocBook.", GlossSeeAlso: "GMLXML" }, GlossSee: "markup" } } } } };

treee(data);
console.log(data);

.as-console-wrapper { max-height: 100% !important; top: 0; }

Answer 2

如果将对象转换为JSON，然后使用字符串替换：

，则更容易实现

var data = { "glossary": { "title": "example glossary", "GlossDiv": { "title": "S", "GlossList": { "GlossEntry": { "ID": "SGML", "SortAs": "SGML", "GlossTerm": "Standard Generalized Markup Language", "Acronym": "SGML", "Abbrev": "ISO 8879:1986", "GlossDef": { "para": "A meta-markup language, used to create markup languages such as DocBook.", "GlossSeeAlso": "GMLXML" }, "GlossSee": "markup" } } } } }

var jsonString = JSON.stringify(data),
    replacedValues = jsonString
        .replace(/([\w.])"/g, '$1_y"') // Add _y to all strings in there.
        .replace(/_y":/g, '_x":')      // Replace _y with _x for all keys.
    newData = JSON.parse(replacedValues);

console.log(newData);

另一种选择是使用正则表达式来替换密钥，然后在解析JSON时使用reviver函数来修改值：

var data = { "glossary": { "title": "example glossary", "GlossDiv": { "title": "S", "GlossList": { "GlossEntry": { "ID": "SGML", "SortAs": "SGML", "GlossTerm": "Standard Generalized Markup Language", "Acronym": "SGML", "Abbrev": "ISO 8879:1986", "GlossDef": { "para": "A meta-markup language, used to create markup languages such as DocBook.", "GlossSeeAlso": "GMLXML" }, "GlossSee": "markup" } } } } }

var jsonString = JSON.stringify(data)
        .replace(/":/g, '_x":');    // Add _x to all keys.

var newData = JSON.parse(jsonString, function(key, val){
    if(typeof val === 'string')     // For every value, if the value is a string
        return val + '_y';          // Add `_y`
    return val;                     // Otherwise, just return the value.
});

console.log(newData);

如何将char添加到javascript对象键和值？

2 个答案: