Bookmarklet to direct chat or call a WhatsApp number. No need to save number before, number normalized for Brazilian format.

WhatsApp_Bookmarklet.js

javascript:(function (loc, msgInput, msgCheck, msgDefault, reTest, reReplace, countryCode, areaCode, s, r) {
    s = prompt(msgInput, '');
	while(!reTest.test(s) && s){
        s = s.replace(/\D/g, '').replace(reReplace, 
			function(match, p1, p2, p3, offset, string){
				r = p1 || '55';
				r += p2 || '11';
				r += p3;
				return r;
			})
        s = prompt(msgCheck, s);
    }
    if(s) {
        open('https://wa.me/' + s + '?l='+ loc +'&text=' + encodeURIComponent(msgDefault) + '&r' + Math.floor(Math.random() * 100)).focus();
    }
})('ptbr',
'Enter WhatsApp Number to sanitize',
'Check formated WhatsApp Number (country code + area code + local number)',
'Default msg',
/^(55)(\d{2})(\d{8,9})$/g,
/^(55)?(\d{2})?(\d{8,9})$/g,
'55',
'11'
);

WhatsApp_Bookmarklet.Minify.js

javascript:(function(loc,msgInput,msgCheck,msgDefault,reTest,reReplace,countryCode,areaCode,s,r){s=prompt(msgInput,"");while(!reTest.test(s)&&s){s=s.replace(/\D/g,"").replace(reReplace,function(match,p1,p2,p3,offset,string){r=p1||"55";r+=p2||"11";r+=p3;return r});s=prompt(msgCheck,s)}if(s){open("https://wa.me/"+s+"?l="+loc+"&text="+encodeURIComponent(msgDefault)+"&r"+Math.floor(Math.random()*100)).focus()}})("ptbr","Enter WhatsApp Number to sanitize","Check formated WhatsApp Number (country code + area code + local number)","Default msg",/^(55)(\d{2})(\d{8,9})$/g,/^(55)?(\d{2})?(\d{8,9})$/g,"55","11");