I am creating a function in jquery where the user typing their password, this function identifies how many uppercase characters there are in this password, in order to calculate the strength of that password.
I even managed to make this function count the uppercase characters, but I still could not get the desired result.
For example, the function can count the uppercase characters when they are at the beginning of the password, but if the user types a lowercase character, the next uppercase characters will not be counted, and that is where the problem arises.
Here is the test link that I ran: Here! .
Error in uppercase count
2
asked by anonymous 02.02.2015 / 11:58
2 answers
2
Another alternative using regex .
$("#senha").change(function(){
var senha = $("#senha").val();
$('#teste').html(senha.replace(/[^A-Z]+/g, '').length);
});
The expression [^A-Z]+ will only match characters in the range of A-Z .
02.02.2015 / 12:51
3
I would do it as follows: By changing the value of the "password" field, I would run the string of the same char to char checking whether it is present in the range [65-90], which corresponds to the [A-Z] values in ASCII code.
$("#senha").change(function(){
var senha = $("#senha").val();
var qtdMaiuscula = 0;
for(var i = 0; i < senha.length; i++)
if(senha.charCodeAt(i) >= 65 && senha.charCodeAt(i) <= 90)
qtdMaiuscula++;
$('#teste').html( qtdMaiuscula );
});
A slightly clearer code, which has the same effect:
$("#senha").change(function(){
var senha = $("#senha").val();
var qtdMaiuscula = 0;
for(var i = 0; i < senha.length; i++)
if(senha[i] >= 'A' && senha[i] <= 'Z')
qtdMaiuscula++;
$('#teste').html( qtdMaiuscula );
});
02.02.2015 / 12:04