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I have a string value like 1,2,3 and i need convert to byte value like [1,2,3]?

how to bind javascript byte to C# Byte[] array

const file = e.files[0];
var reader = new FileReader();
reader.readAsArrayBuffer(file.rawFile);
reader.onload = function () {
     var strBytes = new Uint8Array(reader.result).join();
     var byte=???;
}

thanks

I have a string value like 1,2,3 and i need convert to byte value like [1,2,3]?

how to bind javascript byte to C# Byte[] array

const file = e.files[0];
var reader = new FileReader();
reader.readAsArrayBuffer(file.rawFile);
reader.onload = function () {
     var strBytes = new Uint8Array(reader.result).join();
     var byte=???;
}

thanks

• javascript

Share Improve this question Follow edited Jul 17, 2017 at 6:28 Koby Douek 16.7k2020 gold badges7878 silver badges110110 bronze badges asked Jul 17, 2017 at 6:23 Hossein HaghHossein Hagh 12722 gold badges33 silver badges1515 bronze badges 1

• 2 .join() converts the Uint8Array to a string. If you don’t want a string, don’t call .join(). – Ry- ♦ Commented Jul 17, 2017 at 6:24

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1 Answer 1

Sorted by: Reset to default 0

When creating a Uint8Array, the data is stored as bytes, which is exactly what you are looking for here.

What you've done when using .join() is to create them as strings.

Just remove the .join and you will have an array of bytes:

var strBytes = new Uint8Array(reader.result);

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