function hasMethod( obj, method ) {
	return ( typeof obj[ method ] === 'function' );
}
Tests whether an object has a specified method.

@private
@param {Object} obj - input object
@param {string} method - method name
@returns {boolean} boolean indicating whether an object has a specified method

@example
var bool = hasMethod( [], 'some' );
// returns true

@example
var bool = hasMethod( [], 'beep' );
// returns false