launchWhatsApp function
Implementation
void launchWhatsApp(final String number, {LaunchMode mode = LaunchMode.externalApplication}) async => await launchURL(
"https://api.whatsapp.com/send?phone=$number",
mode: mode,
);
void launchWhatsApp(final String number, {LaunchMode mode = LaunchMode.externalApplication}) async => await launchURL(
"https://api.whatsapp.com/send?phone=$number",
mode: mode,
);