setUint16 Method (DataView)


Sets the Uint16 value at the specified byte offset from the start of the view. There is no alignment constraint; multi-byte values may be set at any offset.

dataView.setUint16(byteOffset, value, littleEndian); 


Required. The Uint16 value that is returned from the method.


The value to set.


The place in the buffer at which the value should be retrieved.


Optional. If false or undefined, a big-endian value should be written, otherwise a little-endian value should be written.

These methods raise an exception if they would write beyond the end of the view.


The following example shows how to set the first Uint16 in the DataView.

var req = new XMLHttpRequest();'GET', "");
    req.responseType = "arraybuffer";

    req.onreadystatechange = function () {
        if (req.readyState === 4) {
            var buffer = req.response;
            var dataView = new DataView(buffer);
            dataView.setUint16(0, 9);


Supported in the following document modes: Internet Explorer 10 standards and Internet Explorer 11 standards. Also supported in Store apps (Windows 8 and Windows Phone 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.