Why Does My JSON Show \'\\u0026\' Instead of \'&\' and How Can I Fix It?

Displaying a Character Instead of ASCII Code in JSON

In the provided Go code, a JSON object with a key-value pair "key": "&" is generated. However, the result displayed in both the browser and console showed an escaped character sequence "u0026" instead of the ampersand symbol (&).

To solve this issue, Go1.7 introduced the SetEscapeHTML function in the encoding/json package. This function allows you to disable the escaping of HTML special characters (<, >, and &) in JSON strings.

By setting SetEscapeHTML to false on the JSON encoder, the escaping of the ampersand character can be disabled. Here's the modified code:

enc := json.NewEncoder(w)
enc.SetEscapeHTML(false)

With this modification, the ampersand character will be displayed as "&" both in the browser and the console, rather than its ASCII code equivalent.

Note: This approach only affects the encoding of characters into JSON strings. It does not change the encoding of characters received from clients.

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