javascript - 尝试循环 JSON 文件

Question

我正在 React 中创建一个字典应用程序，我已经加载了 JSON 字典，如下所示:

{
"DIPLOBLASTIC": "Characterizing the ovum when it has two primary germinallayers.",
"DEFIGURE": "To delineate. [Obs.]These two stones as they are here defigured. Weever.",
"LOMBARD": "Of or pertaining to Lombardy, or the inhabitants of Lombardy.",
"BAHAISM": "The religious tenets or practices of the Bahais.",
"FUMERELL": "See Femerell."
}

用户在输入字段中输入一个单词，然后将该值传递到以下函数以在 JSON 中搜索匹配的键。然后将匹配的单词及其各自的值推送到结果数组中。

handleSearch: function(term) {
    var term = term;
    var results = [];
    for (var key in Dictionary) {
        if (Dictionary.hasOwnProperty(key)) {
            if (term == Dictionary[key]) {
            results.push(Dictionary[key])
            }
        }
    }
    console.log(results)
},

但是，我正在努力寻找一种成功的方法来循环它以获得结果。控制台正在记录一个空数组。

有人可以建议我哪里出错了吗？

Answer 1

您可以通过添加比较函数来获得更好的匹配(在下面的示例中是 compareTerm 函数)。我所做的是比较术语是否以字典键开头，如果您希望它成为字符串的任何部分，您可以将其从 === 0 更改为 > -1。

// compare function which needs to be added somewhere
function compareTerm(term, compareTo) {
  var shortenedCompareTo = compareTo
    .split('')
    .slice(0, term.length)
    .join('');

  return term.indexOf(shortenedCompareTo.toLowerCase()) === 0;
}

// only changed the compare function
handleSearch: function(term) {
    var results = [];
    for (var key in Dictionary) {
        if (Dictionary.hasOwnProperty(key)) {
            if (compareTerm(term, Dictionary[key])) {
              results.push(Dictionary[key])
            }
        }
    }

    console.log(results);
},