The fatal read-only property of the TextDecoder interface is a Boolean indicating whether the error mode is fatal.

If the property is true then a decoder will throw a TypeError if it encounters malformed data while decoding. If false the decoder will substitute the invalid data with the replacement character U+FFFD (�). The value of the property is set in the TextDecoder() constructor.


A boolean which will return true if the error mode is set to fatal. Otherwise it returns false, indicating that the error mode is "replacement".


# ref-for-dom-textdecoder-fatal①

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