validar email

[kakashi20]

hola

con esta expresion puedo validar un email en javascript del tipo [email protected]:

var filtro = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9]{2,4})+$/;
if (!filtro.test(email)) {
error = 'Introduzca un email válido';
}


pero como hago con los email que son: [email protected]

si alguien me pudiese ayudar se lo agradeceria.

[bolorsociedad]

Tan sólo añade un . al tercer bloque dentro de filtro:


var filtro = /^([a-zA-Z0-9_\.\-])+\@(([a-zA-Z0-9\-])+\.)+([a-zA-Z0-9.]{2,4})+$/;

[kakashi20]

gracias bolorsociedad

pero eso me valida que el email sea ambas formas : [email protected] y [email protected]


???

[Lynxcraft]

Código PHP:

  function isEmail(value){ 
return /^((([a-z]|d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+(\.([a-z]|\d|[!#\$%&'\*\+\-\/=\?\^_`{\|}~]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])+)*)|((\x22)((((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(([\x01-\x08\x0b\x0c\x0e-\x1f\x7f]|\x21|[\x23-\x5b]|[\x5d-\x7e]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(\\([\x01-\x09\x0b\x0c\x0d-\x7f]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF]))))*(((\x20|\x09)*(\x0d\x0a))?(\x20|\x09)+)?(\x22)))@((([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|\d|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))\.)+(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])|(([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])([a-z]|\d|-|\.|_|~|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])*([a-z]|[\u00A0-\uD7FF\uF900-\uFDCF\uFDF0-\uFFEF])))$/i.test(value); 
} 
 
alert(isEmail('[email protected]'));  
   

[kakashi20]

Gracias Lynxcraft

el unico detalle es que esta forma no la valida : [email protected]

aunque no se si habra algunas otras que no valide...

[emprear]

Código Javascript:

<script type="text/javascript">
//<![CDATA[
var elEmail1 ="[email protected]";
var elEmail2 ="[email protected]";
var elEmail3 ="[email protected]";
var emailReg =/^[a-z0-9\._-]+@+[a-z0-9\._-]+\.+[a-z]{2,4}$/i;
if(!emailReg.test(elEmail1)) {
alert('error1');
}
if(!emailReg.test(elEmail2)) {
alert('error2');
}
if(!emailReg.test(elEmail3)) {
alert('error3');
}
//]]>
</script>
 

saludos