src/probe.js
function extendPrototype(vendor, proto, func) {
        proto.prototype[func] = function() {
            var args = slice.call(arguments) || [];
                args.unshift(this);

            return vendor[func].apply(this, args);
        };
    }
function extendPrototype(vendor, proto, func) {
        proto.prototype[func] = function() {
            var args = slice.call(arguments) || [];
                args.unshift(this);

            return vendor[func].apply(this, args);
        };
    }
function extendPrototype ( vendor , proto , func ) { proto . prototype [ func ] = function ( ) { var args = slice . call ( arguments ) || [ ] ; args . unshift ( this ) ; return vendor [ func ] . apply ( this , args ) ; } ; }
Extend the prototype with the vendor function.
Prepend the "this" value to the beginning of the arguments.

@param {Object} vendor
@param {Object} proto
@param {Function} func
Extend the prototype with the vendor function . Prepend the this value to the beginning of the arguments .