Function detectSource

detectSource(
    param?:
        | string
        | Promise<undefined | string>
        | (() => undefined | string | Promise<undefined | string>),
    resolve?: (res?: string) => void,
    reject?: () => void,
): void
Detects the image src for the given param
Parameters
- Optionalparam:
      | string
      | Promise<undefined | string>
      | (() => undefined | string | Promise<undefined | string>)
  the parameter to inspect
- Optionalresolve: (res?: string) => void
  the callback function when resolved
- Optionalreject: () => void
  the callback function when rejected
Returns void
Author
David Hsing