javascript Json.Parse 转义换行符
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Json.Parse escape newline characters
提问by sanjeev
I have a page where I am trying to parse following json string using JSON.parse
我有一个页面，我正在尝试使用 JSON.parse 解析以下 json 字符串
'[{"Name":"Eggs","Complete":false,"Notes":"Notes here\n"},{"Name":"Sugar","Complete":false,"Notes":null}]'
But following code gives error "Uncaught SyntaxError: Unexpected token"
但是下面的代码给出了错误 "Uncaught SyntaxError: Unexpected token"
var groceriesJson = JSON.parse(jsonString);
Then I came to know that its because of \nin json string. So I did try this solution. But no luck. Still same error "Uncaught SyntaxError: Unexpected token"
然后我才知道这是因为\n在 json 字符串中。所以我确实尝试了这个解决方案。但没有运气。还是一样的错误"Uncaught SyntaxError: Unexpected token"
function escapeSpecialChars(jsonString) {
return jsonString.replace(/\n/g, "\n")
.replace(/\'/g, "\'")
.replace(/\"/g, '\"')
.replace(/\&/g, "\&")
.replace(/\r/g, "\r")
.replace(/\t/g, "\t")
.replace(/\b/g, "\b")
.replace(/\f/g, "\f");
}
var groceriesJson = JSON.parse(escapeSpecialChars(jsonString));
Any ideas? Thanks
有任何想法吗？谢谢
---UPDATE----
- -更新 - -
I am not creating this string manually, I have c# codes that creates json string from c# objects
我不是手动创建这个字符串，我有从 c# 对象创建 json 字符串的 c# 代码
var jss = new System.Web.Script.Serialization.JavaScriptSerializer();
var groceries = jss.Serialize(Model);
then in javascript codes I have
然后在javascript代码中我有
var jsonString = '@Html.Raw(groceries)'
var groceriesJson = JSON.parse(escapeSpecialChars(jsonString));
回答by laruiss
You should just escape the \as in \\n, your JSON becoming :
您应该将\as in转义\\n，您的 JSON 变为：
'[{"Name":"Eggs","Complete":false,"Notes":"Notes here\n"},{"Name":"Sugar","Complete":false,"Notes":null}]';
If you cannot have access to the JSON, then your function should be :
如果您无法访问 JSON，那么您的函数应该是：
function escapeSpecialChars(jsonString) {
return jsonString.replace(/\n/g, "\n")
.replace(/\r/g, "\r")
.replace(/\t/g, "\t")
.replace(/\f/g, "\f");
}
var groceriesJson = JSON.parse(escapeSpecialChars(jsonString));
回答by Reinaldo
As @Quentin suggests you can skip storing the value inside the literal and simply do something like this:
正如@Quentin 建议的那样，您可以跳过将值存储在文字中，只需执行以下操作：
var jsonObject = @Html.Raw(groceries);
