### ks.canIUse(schema: string): boolean

Source: https://open.kuaishou.com/docs/develop/api-next/basic/ks.canIUse

Checks if a specific API, callback, parameter, or component attribute is available in the current environment.

```APIDOC
## ks.canIUse(schema: string)

### Description
Determines whether a specific mini-program API, callback, parameter, or component is available in the current version. This is essential for maintaining compatibility with lower versions of the base library.

### Parameters
#### Path Parameters
- **schema** (string) - Required - The feature to check, formatted as `${API}.${method}.${param}.${option}` or `${component}.${attribute}.${option}`.

### Response
#### Success Response (boolean)
- Returns `true` if the feature is available, `false` otherwise.

### Request Example
```javascript
// Check API methods
ks.canIUse('console.log');

// Check API parameters or return values
ks.canIUse('getSystemInfoSync.return.safeArea.left');

// Check component attributes
ks.canIUse('text.selectable');
```
```

--------------------------------

### Check API/Component Availability

Source: https://open.kuaishou.com/docs/develop/api-next/basic/ks.canIUse

Use this function to determine if an API, its parameters, callbacks, or component attributes are available in the current mini-program version. Ensure compatibility by checking before using features that might not be supported on older clients.

```javascript
ks.canIUse('console.log');
```

```javascript
ks.canIUse('CameraContext.onCameraFrame');
```

```javascript
ks.canIUse('CameraFrameListener.start');
```

```javascript
ks.canIUse('getSystemInfoSync.return.safeArea.left');
```

```javascript
ks.canIUse('getSystemInfo.success.screenWidth');
```

```javascript
ks.canIUse('showToast.object.image');
```

```javascript
ks.canIUse('onCompassChange.callback.direction');
```

```javascript
ks.canIUse('request.object.method.GET');
```

```javascript
ks.canIUse('text.selectable');
```

```javascript
ks.canIUse('button.open-type.contact');
```

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