问题
I am calling google translate api and getting back strings that are not fully decoded. In particular, I am seeing ' where single quotes should be.
For example:
{
"q": "det är fullt",
"target": "en"
}
Returns
{
"data": {
"translations": [
{
"translatedText": "It&\#39;s full",
"detectedSourceLanguage": "sv"
}
]
}
}
I would have expected JSON.parse to take care of this, but it does not. Is there some other native function I need to be calling? My current fix is to fix this using a regex .replace(/'/g, "'");, but is there a better way to decode this type of thing using javascript?
回答1:
Aha! The issue is caused because the response is HTML encoded.
If I were to put the translation onto the page directly, the quote renders just fine. However, I am putting the result in a textarea to give users a chance to edit that translation. As a result, the browser is not automatically reading the string as HTML since it is not rendered directly as HTML.
The solution I am now using is to decode the string using DOMParser as described on this stackoverflow thread:
var encodedStr = 'hello & world';
var parser = new DOMParser;
var dom = parser.parseFromString(
'<!doctype html><body>' + encodedStr,
'text/html');
var decodedString = dom.body.textContent;
console.log(decodedString);
来源：https://stackoverflow.com/questions/44548734/how-to-parse-out-unescaped-single-quote-39-from-json-string-in-javascript-goo