Does form data still transfer if the input tag has no name?

For efficiency purposes I am wondering if a file or text in a textarea still gets transferred to the server if you omit the name attribute or set it to null. eg

<input type="file" id="file" name="">
<textarea id="text" name="">

I notice that the data is not available at the server if you do this.

The W3C specification, if I understand it correctly, mandates that every form input element has a name attribute specified. Otherwise that element will not be processed. Source

No.

I checked this in all browsers - the fields with empty/missing name are missing in POST/GET request from browser. It doesn't matter if they have or don't have id (my thought was that browsers might use id for name but no).

it won't work directly but you can assign them through AJAX calls in JavaScript, idk really know if this really has any application in the real world ( one could be the obfuscation of the parameters that the server expects )

having

<form id="login" method="post" action="someurl">
 <input id="username" type="text" /> 
 <input id="password" type="password" />
 <input type="submit" value="login" />
</form>

JS to process would be (using jQuery to process ajax)

$("#login").on("submit",function(ev){
  $.post("someurl",{
    usrn: $("#username").val,
    pwd: $("#password").val       
  },function(ev){
          //this is the callback function that runs when the call is completed successfully
  });
}
/*second argument on $.post is and object with data to send in a post request 
usrn would be the name of the parameter recived in the server 
same for pwd "#username" and  "#password" are the id's html attribute for the field
'.val' is the jquery object's attribute in which jquery access the value in the text box
"$()" or it's equivalent "jQuery()" works like an object constructor that fills 
the attributes with the
DOM data that cover the css selector that this function expects as a parameter*/

please NOTE code might not be fully correct since i haven't test it but the logic behind it should be self-explanatory