* Query an element selector if it's not an element already. * html5 获取dom
(el)
| 7697 | * html5 获取dom |
| 7698 | */ |
| 7699 | function query(el) { |
| 7700 | if (typeof el === 'string') { |
| 7701 | var selected = document.querySelector(el); |
| 7702 | if (!selected) { |
| 7703 | "development" !== 'production' && warn( |
| 7704 | 'Cannot find element: ' + el |
| 7705 | ); |
| 7706 | return document.createElement('div') |
| 7707 | } |
| 7708 | return selected |
| 7709 | } else { |
| 7710 | return el |
| 7711 | } |
| 7712 | } |
| 7713 | |
| 7714 | /* |
| 7715 | 创建一个真实的dom |