Is it possible to detect binary data in JavaScript?
I'd like to be able to detect binary data and convert it to hex for easier readability/debugging.
After more investigation I've realized that detecting binary data is not the right question, because binary data can contain regular characters, and non-printable characters.
Outis's question and answer (/[\\x00-\\x1F]/) is really the best we can do in an attempt to detect binary characters.
Note: You must remove line feeds and possibly other characters from your ascii string sequence for the check to actually work.
If by "binary", you mean "contains non-printable characters", try:
/[\x00-\x1F]/.test(data)
If whitespace is considered non-binary data, try:
/[\x00-\x08\x0E-\x1F]/.test(data)
If you know the string is either ASCII or binary, use:
/[\x00-\x1F\x80-\xFF]/.test(data)
or:
/[\x00-\x08\x0E-\x1F\x80-\xFF]/.test(data)
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