Question

我正在从包含双引号的api调用获取数据。例如data = '{"firstName":""John""}'

如何将这些数据解析为json。预期输出：result = JSON.parse(data)和result.firstname的输出应为"John"而不是John

Answer 1

@Cid指出，这是无效的JSON。

您需要先对其进行消毒：-

var json = data.replace(/""/g, '"');

var x = JSON.parse(json);

如果要保留内引号，则需要使用以下内容：-

var json = data.replace(/(\".*\":)\"\"(.*)\"\"/g, '$1 "\\"$2\\""');

var x = JSON.parse(json);

但是，如果正则表达式与其他参数冲突，则可能需要弄弄它。

您可以在https://regex101.com/查看上面的正则表达式，以获取正则表达式如何匹配的说明：-

/(\".*\":)\"\"(.*)\"\"/g

  1st Capturing Group (\".*\":)
    \" matches the character " literally (case sensitive)
    .* matches any character (except for line terminators)
      * Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)
    \" matches the character " literally (case sensitive)
    : matches the character : literally (case sensitive)

  \" matches the character " literally (case sensitive)
  \" matches the character " literally (case sensitive)

  2nd Capturing Group (.*)
    .* matches any character (except for line terminators)
      * Quantifier — Matches between zero and unlimited times, as many times as possible, giving back as needed (greedy)

  \" matches the character " literally (case sensitive)
  \" matches the character " literally (case sensitive)

Global pattern flags
g modifier: global. All matches (don't return after first match)

替换文本中的$1和$2对应于正则表达式中的捕获组。有关详细信息，请参见String.prototype.replace()。

Answer 2

尝试一下

var json = '{"firstName":""John""}';       //Let's say you got this
json = json.replace(/\"([^(\")"]+)\":/g,"$1:");  //This will remove all the quotes
json;

带有双引号的JSON数据

2 个答案: