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byteOffset Property (Uint8ClampedArray)

Read-only. The offset of this array from the start of its ArrayBuffer, in bytes, as fixed at construction time.

var arrayOffset = uint8ClampedArray.byteOffset;

The following example shows how to get the offset of the array.

var req = new XMLHttpRequest();
    req.open('GET', "http://www.example.com");
    req.responseType = "arraybuffer";
    req.send();

    req.onreadystatechange = function () {
        if (req.readyState === 4) {
            var buffer = req.response;
            var dataView = new DataView(buffer);
            var intArr = new Uint8ClampedArray(buffer.byteLength);
            alert(intArr.byteOffset);
        }
    }

Supported in the Internet Explorer 11 standards document mode. Also supported in Windows Store apps (Windows 8.1). See Version Information. Not supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards. Not supported in Windows 8 or Windows Phone 8.1.

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