[javascript]能力检测
1 function hasMethod(object,property){ 2 var a = typeof object[property]; 3 return a == 'function' || 4 (!!(a == 'object' && object[property])) || 5 a == 'unknown'; 6 }
1 function hasMethod(object,property){ 2 var a = typeof object[property]; 3 return a == 'function' || 4 (!!(a == 'object' && object[property])) || 5 a == 'unknown'; 6 }