Function isNotTrue

isNotTrue(value?: null | string | number | boolean | (() => boolean)): boolean
Returns whether the given value is nil or can be converted to false
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 false
Author
David Hsing
Example
```
isNotTrue(false);    // true
isNotTrue(undefined);    // true
isNotTrue(null);    // true
isNotTrue('no');    // true
isNotTrue('foobar');    // true
isNotTrue(() => false);    // true
```