What are the reasons for JSON being considered type-safe?

Recently, I came across a statement suggesting that JSON is type-safe. I understand that vanilla JavaScript is not considered type-safe. However, how can a data interchange format like JSON be classified as type-safe?

Answer №1

It all comes down to interpretation. From most perspectives, json is considered safe. But keep in mind that it has limitations - for instance, you can't transmit executable code or other non-standard data types.

Answer №2

It's important to note that JSON data itself is inert and will not take any action on its own. However, when you decode or unpack the data, there is a potential for danger if it contains malicious content.

For instance, while the raw data may be harmless, injecting it into your webpage using a script like $('#data').html(data.my_script); could introduce harmful elements from the data.my_script.

If you manually insert JavaScript code (let's say my_script) into your website, that script has the potential to execute any action, which can pose a security risk.


If you have any specific concerns about possible vulnerabilities, considering utilizing JSON data can help identify and address them effectively.

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