Node.js将字符串转换为UTF-8 [英] Nodejs convert string into UTF-8

问题描述

从我的数据库中获取以下字符串:

From my DB im getting the following string:

Johan Öbert

它应该说的是:

Johan Öbert

我试图像这样将其转换为utf-8:

I've tried to convert it into utf-8 like so:

nameString.toString("utf8");

但还是同样的问题.

有什么想法吗?

推荐答案

使用npm中的 utf8 模块编码/解码字符串.

Use the utf8 module from npm to encode/decode the string.

安装:

npm install utf8

在浏览器中:

<script src="utf8.js"></script>

在Node.js中:

const utf8 = require('utf8');

API:

编码:

utf8.encode(string)

将任何给定的JavaScript字符串(字符串)编码为UTF-8，并返回该字符串的UTF-8编码版本.如果输入字符串包含非标量值(即孤立代理)，则会引发错误. (如果还需要编码非标量值，请改用WTF-8.)

Encodes any given JavaScript string (string) as UTF-8, and returns the UTF-8-encoded version of the string. It throws an error if the input string contains a non-scalar value, i.e. a lone surrogate. (If you need to be able to encode non-scalar values as well, use WTF-8 instead.)

// U+00A9 COPYRIGHT SIGN; see http://codepoints.net/U+00A9
utf8.encode('\xA9');
// → '\xC2\xA9'
// U+10001 LINEAR B SYLLABLE B038 E; see http://codepoints.net/U+10001
utf8.encode('\uD800\uDC01');
// → '\xF0\x90\x80\x81'

解码:

utf8.decode(byteString)

将任何给定的UTF-8编码字符串(byteString)解码为UTF-8，并返回该字符串的UTF-8解码版本.当检测到格式错误的UTF-8时，它将引发错误. (如果还需要解码编码的非标量值，请改用WTF-8.)

Decodes any given UTF-8-encoded string (byteString) as UTF-8, and returns the UTF-8-decoded version of the string. It throws an error when malformed UTF-8 is detected. (If you need to be able to decode encoded non-scalar values as well, use WTF-8 instead.)

utf8.decode('\xC2\xA9');
// → '\xA9'

utf8.decode('\xF0\x90\x80\x81');
// → '\uD800\uDC01'
// → U+10001 LINEAR B SYLLABLE B038 E

资源

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