基于安全考虑，小程序中不支持动态执行 JS 代码，即:
- 不支持使用
eval 执行 JS 代码 - 不支持使用
new Function 创建函数
微信小程序已经支持了绝大部分的 ES6 API，已支持的 API 如下(部分 API 依赖系统版本):
| String | iOS10+ | Android |
|---|
| codePointAt | | |
| normalize | | |
| includes | | |
| startsWith | | |
| endsWith | | |
| repeat | | |
| String.fromCodePoint | | |
| Array | iOS10+ | Android |
|---|
| copyWithin | | |
| find | | |
| findIndex | | |
| fill | | |
| entries | | |
| keys | | |
| values | | ✘ |
| includes | | |
| Array.from | | |
| Array.of | | |
| Number | iOS10+ | Android |
|---|
| isFinite | | |
| isNaN | | |
| parseInt | | |
| parseFloat | | |
| isInteger | | |
| EPSILON | | |
| isSafeInteger | | |
| Math | iOS10+ | Android |
| trunc | | |
| sign | | |
| cbrt | | |
| clz32 | | |
| imul | | |
| fround | | |
| hypot | | |
| expm1 | | |
| log1p | | |
| log10 | | |
| log2 | | |
| sinh | | |
| cosh | | |
| tanh | | |
| asinh | | |
| acosh | | |
| atanh | | |
| Object | iOS10+ | Android |
|---|
| is | | |
| assign | | |
| getOwnPropertyDescriptor | | |
| keys | | |
| getOwnPropertyNames | | |
| getOwnPropertySymbols | | |
| Other | iOS10+ | Android |
|---|
| Symbol | | |
| Set | | |
| Map | | |
| Proxy | | ✘ |
| Reflect | | |
| Promise | | |
