JavaScript

Decode 2-digit Hex Escaped

Demonstrates how to replace escaped us-ascii chars such as \x7b and \x22 with the chars.

Note

This example is intended for running within a Chilkat.Js embedded JavaScript engine. All Chilkat JavaScript examples require Chilkat v11.4.0 or greater.

JavaScript

// We have the following string with some us-ascii chars escaped like this:
var s = "\x7b\x22responseContext\x22:\x7b\x22";

// Note: The above escaping does not conform to any standard format (as far as I know).
// Chilkat does not have anything to decode from the above.
// However, we can 1st transform into a standard format, and then decode..

// JSON escapes chars outside us-ascii like this:  "Hello, \ud83d\ude03!"
// We can transform the above to this:  "\u007b\u0022responseContext\u0022:\u007b\u0022"
// And then decode..

var sb = new CkStringBuilder();

sb.Append(s);
var numReplaced = sb.Replace("\\x","\\u00");

// Now decode from "json" escapes
sb.Decode("json","utf-8");

// Show the decoded string
console.log(sb.GetAsString());

// Here's the result: {"responseContext":{"