javascript - jQuery get number of child elements with specific parameters -


i have following piece of code, being executed on submit of form. yet following logic incorrect intent develop universal function work forms in dom. after failing on , on ended creating function, specific form, verifies if values of input fields in form same custom defval attribute, if form stop submitting , error message pop up.

my question consists on following: how can check if child elements of form meet specific parameters, example being input field , have .val() == .attr('defval')?

i've tried using .find(), .children() , .childnode functionalities. please suggest me solution , if possible explain code

html:

<div class="login" align="center"> <div class="formwrapper">     <form action="index.php?r=backoffice" method="post">         <input type="text" name="username" required value="username" defval="username" maxlength="16">         <input type="password" name="password" required value="password" defval="password" maxlength="16">         <input type="reset" value="reset">         <input type="submit" value="submit">         <hr/>         <a href="#" class="helplink">can't log in?</a>     </form> </div> <div class="infowrapper">     <div class="info">      </div> </div>

jquery:

$('div.login').ready(function(){ $('div.login form').submit(function(e){     if( $('div.login form input').val()==$('div.login form input').attr('defval') ){         var nummsgs=$('div.login form').children();         if( nummsgs.length<=6 ){             var formhtml=$('div.login form').html();             $('div.login form').html('<a class="sysmsg" href="#">error::invalid username/password</a>'+formhtml);             $('div.login form a.sysmsg').addclass('errfatal').fadein(300).delay(5000).fadeout(300);         }     e.preventdefault();     } });

});

try (this pattern)

$(function () {     var elems = $(".login input[defval]");     console.log(elems.length);     $.each(elems, function (i, el) {         if ($(el).val() === $(el).attr("defval")) {             // stuff             console.log(i, $(el).val() === $(el).attr("defval"), $(el));         };     }); });

jsfiddle http://jsfiddle.net/guest271314/9578v/


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