;How encode string like \x31, etc?

Question

i saw a code and that code had all string in a array.. And each array index was like: "\x31\x32\x33", etc..

How i can convert for example "hello" to that encode format?

if is possible, there a online encoder?

Provided an answer below: http://stackoverflow.com/a/39761829/1409180 — nikjohn, Sep 29 '16 at 05:24

score 2 · Answer 1 · edited May 23 '17 at 12:00

As the @nikjohn said, you can decoded the string by console.log.

And the following code I found from this question. And I made some changes, the output string will be in a \x48 \x65 form.

It will convert the string in a hex coding, and each character will be separated by a space:

String.prototype.hexEncode = function(){
    var hex, i;

    var result = "";
    for (i=0; i<this.length; i++) {
        hex = this.charCodeAt(i).toString(16);
        result += ("\\x"+hex).slice(-4) + " ";
    }

    return result;
};

var str = "Hello";
console.log(str.hexEncode());

The result of the above code is \x48 \x65 \x6c \x6c \x6f。

Abhinav · Answer 2 · 2016-09-29T06:27:20.477

1

It is an hex coding encoding.

www.unphp.net

http://ddecode.com/hexdecoder/

http://string-functions.com/hex-string.aspx

are the few sites that can give you encoding and decoding using hex coding.

edited Sep 29 '16 at 06:27

answered Sep 29 '16 at 05:00

Abhinav

388
4
12

It's an *encoding*, not an *encryption*. – Bergi Sep 29 '16 at 05:04

score 0 · Accepted Answer · edited May 23 '17 at 11:48

If you console log the string sequence, you get the decoded strings. So it's as simple as

console.log('\x31\x32\x33'); // 123

For encoding said string, you can extend the String prototype:

String.prototype.hexEncode = function(){
var hex, i;

var result = "";
 for (i=0; i<this.length; i++) {
    hex = this.charCodeAt(i).toString(16);
    result += ("\\x"+hex).slice(-4);
 }
 return result
}

Now,

var a = 'hello';
a.hexEncode(); //\x68\x65\x6c\x6c\x6f

;How encode string like \x31, etc?

3 Answers3