从JavaScript中的字符串中删除基于十六进制值的特定字符

Question

Now, I want to remove all extra \\x characters before hex value, and keep the hex value as string. For example,

Convert the string

"\\\\x1D\\\\x06\\\\x1BH\\\\x18+Congratulations!\\\\x1D\\\\x00"

to the content of new string

1d 06 1b 48 18 2b 43 6f 6e 67 72 61 74 75 6c 61 74 69 6f 6e 73 21 1d 00

How to do it in JavaScript efficiently?

Answer 1

It seems works well with the following codes

var ss = "\\x1D\\x06\\x1BH\\x18+Congratulations!\\x1D\\x00";

ss.replace(/\\x[0-9a-fA-F]{2}/g, function(v){ 
   return String.fromCharCode(parseInt(v.substr(2), 16));
});