JavaScript

JSON Escape and Unescape a String

Demonstrates how to JSON escape or unescape a string.

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

var sb = new CkStringBuilder();

sb.Append("backslash: \\\\, A: \\u0041");
console.log(sb.GetAsString());

// The output is:
//    backslash: \\, A: \u0041

// The keyword "json" can be used
// to escape and unescape.  To escape is to encode.  To unescape is to decode.

// Unescape (decode) the string in sb.
sb.Decode("json","utf-8");
console.log(sb.GetAsString());

// After JSON unescaping:
//    backslash: \, A: A

// Now JSON escape the string.
sb.Encode("json","utf-8");
console.log(sb.GetAsString());

// After JSON escaping:
//    backslash: \\, A: A

// Note: The "A" is not escaped to "\u0041" because there is no need.
// The "\uXXXX" format would be produced for non-printable control chars.