javascript node.js toString 编码
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node.js toString encoding
提问by igor
I have file encoded with koi8-u
我有用 koi8-u 编码的文件
I need to just copy this file, but, through toString()
我只需要复制这个文件，但是，通过 toString()
fs = require('fs')
fs.readFile('fileOne',function(e,data){
data = data.toString() // now encoding is damaged
??? // my code must be here
fs.writeFile('fileTwo',data)
})
I tried iconv it back using different charsets but with no success. Thanks!
我尝试使用不同的字符集将它 iconv 返回，但没有成功。谢谢！
回答by TheHippo
You need to write and read everything with binaryencoding:
您需要使用binary编码来编写和读取所有内容：
There should be two ways to do this:
应该有两种方法来做到这一点：
Read data as Buffer:
读取数据为Buffer：
fs = require('fs')
fs.readFile('fileOne', function(e, data){
// data is a buffer
buffer = data.toString('binary')
fs.writeFile('fileTwo', {
'encoding': 'binary'
}, buffer);
});
Read data as binary encoded string:
以二进制编码读取数据string：
fs = require('fs')
fs.readFile('fileOne', {
'encoding': 'binary'
}, function(e, data){
// data is a string
fs.writeFile('fileTwo', {
'encoding': 'binary'
}, data);
});
