常用JS特性浏览器支持版本查询
此文仅供自己快速查询常用的特性。红色表示不支持。
| Feature | iOS Safari | Android | Chrome | Firefox |
| ES6 Class | 10.3 | 49 | 49 | 46 |
| 箭头函数 | 10 | 45 | 45 | 22 |
| let | 10(for循环scope错误),11 | 49 | 41(strict模式),49 | 44 |
| const | 10(scope错误), 11 | 4.4.4(非严格模式) | 41(非严格没块域),49 | 36 |
| for...of | 7 | 38 | 38 | 13 |
| ...展开 | 8 | 46 | 46 | 16 |
| 解构赋值 | 8 | 49 | 49 | 41 |
| 默认参数 | 10 | 49 | 49 | 15 |
| grid布局 | 10.3 | 57 | 57 | 52 |
| flex布局 | 9 | 4.4 | 29 | 20 |
| 模板字符串 | 9 | 41 | 41 | 34 |
| String.prototype.trim | 5 | 37 | 4 | 3.5 |
| String.prototype.includes | 9 | 41 | 41 | 40 |
| Array.prototype.includes | 9 | 47 | 47 | 43 |
| Array.prototype.filter | 1 | 37 | 1 | 1.5 |
| Array.prototype.reduce | 3.2 | 37 | 3 | 3 |
| async/await | 10.3 | 55 | 55 | 52 |
| Map/Set | 8 | 38 | 38 | 13 |
| new Promise() | 10 | 4.4.3 | 32 | 37 |
| fetch | 10.3 | 42 | 42 | 39 |
| module/import/export | 10.3 | 61 | 61 | 60 |
| class | 10.3 | 49 | 49 | 45 |
| extends | 9 | 49 | 49 | 45 |
