com-tools/doc/com-tools.listenablepropopts.md

com-tools 提供了一些通用的工具函数；

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## ListenablePropOpts type

定义可监听的属性

**Signature:**

```typescript
declare type ListenablePropOpts<T> = {
    ready ?:string,
    noEvent ?:boolean,
    event ?:string,
    newValueKey ?:string,
    oldValueKey ?:string,
    getDefault ?:(this:T,thisValue:T)=>any
};
```