Function isNotFalse

isNotFalse(value?: null | string | number | boolean | (() => boolean)): boolean
Returns whether the given value is nil or can be converted to true
Parameters
- Optionalvalue: null | string | number | boolean | (() => boolean)
  the source value to check
Returns boolean
whether the given value is nil or can be converted to true
Author
David Hsing
Example
```
isNotFalse(true);    // true
isNotFalse(undefined);    // true
isNotFalse(null);    // true
isNotFalse('yes');    // true
isNotFalse('foobar');    // true
isNotFalse(() => true);    // true
```