JSON escaping adds backslash characters before special characters (quotes, newlines, tabs) so the string can be safely embedded in JSON or code. Unescaping reverses this — removing the backslashes to restore the original string.
When you need to embed a JSON string inside another JSON string, or when storing JSON in environments that require string escaping (HTML attributes, JavaScript template literals, etc.).
Double quotes ("), backslashes (\\), newlines, tabs, and other control characters. The escaped output is safe to use as a JSON string value.
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