index.js
function getViewTag(view, offset) {
    var tag = '', i;
    for (i = offset; i < offset + 4; i += 1) {
        tag += String.fromCharCode(view.getInt8(i));
    }
    return tag;
}
function getViewTag(view, offset) {
    var tag = '', i;
    for (i = offset; i < offset + 4; i += 1) {
        tag += String.fromCharCode(view.getInt8(i));
    }
    return tag;
}
function getViewTag ( view , offset ) { var tag = '' , i ; for ( i = offset ; i < offset + 4 ; i += 1 ) { tag += String . fromCharCode ( view . getInt8 ( i ) ) ; } return tag ; }
Retrieve a 4-character tag from the DataView.

@param  {DataView} view       DataView
@param  {number} strLen     string length
@param  {number} byteOffset byteOffset
@return {string}            string
Retrieve a 4 - character tag from the DataView .