JavaScript traverses and verifies the values ​​of all text boxes_form effects

Idea:
Everyone knows that the type of text box input is text, so we only need to traverse all inputs, determine whether the type is text, and then determine the value of the specified field to meet the requirements
The specific code is as follows:

Copy code The code is as follows:

var aa = document.getElementsByTagName("input");
var bb = 0;
for(var i=0;i{
var avalue = aa[i].value;
var atype = aa[i] .type;
if(atype == "text")
bb ;
}
alert("Total" bb "item text")