Dynamically display the number of words that can be entered and prompt the number of words that can be entered_javascript skills

Copy code The code is as follows:

You can also enter 15 characters

js:

Copy code Code As follows:

function setShowLength(obj, maxlength, id)
{
var rem = maxlength - obj.value.length;
var wid = id;
if (rem < 0){
rem = 0;
}
document.getElementById(wid).innerHTML = "You can also enter" rem "number of words";
}