module iconv

iconvIt is a built-in conversion module used to realize data conversion between various different encodings.

iconv is implemented by calling the encoding function of the underlying system, and also supports some built-in encoding sets, such as "utf8", "utf-8", "ucs2", "ucs-2", "utf16", "utf-16" , "ucs2le", "ucs-2le", "utf16le", "utf-16le", "ucs2be", "ucs-2be", "utf16be", "utf-16be", "ucs4", "ucs-4" , "utf32", "utf-32", "ucs4le", "ucs-4le", "utf32le", "utf-32le", "ucs4be", "ucs-4be", "utf32be", "utf-32be"

iconvThe module provides two core methods:

1. iconv.encode(charset, data):Convert text data to binary data
2. iconv.decode(charset, data):Convert binary data to text data

These two methods are very easy to use and understand. For example, for a "utf-8" encoded string "hello", we can convert it to "gbk" encoding through the following code:

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const iconv = require('iconv');

const utf8String = 'hello';
const gbkString = iconv.decode('gbk', iconv.encode('utf-8', utf8String));
console.log(gbkString);  // output "你好"

Note: The first parameter charset of encodethe and decodemethods both specify the encoding to be used.

static function

encode

Convert text to binary data using iconv

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static Buffer iconv.encode(String charset,
    String data);

Call parameters:

• charset: String, specified character set
• data: String, the text to be converted

Return results:

• Buffer, returns the decoded binary data

---

decode

Use iconv toBufferConvert content to text

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static String iconv.decode(String charset,
    Buffer data);

Call parameters:

• charset: String, specified character set
• data:Buffer, the binary data to be converted

Return results:

• String, returns the encoded string

---

isEncoding

Check if character set is supported

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static Boolean iconv.isEncoding(String charset);

Call parameters:

• charset: String, specified character set

Return results:

• Boolean, returns whether the character set is supported