Input validation (non-plug-in)

Source: Internet
Author: User

<HTML>    <Head>        <MetaCharSet= "Utf-8"/>        <Scriptsrc= "Http://"></Script>    </Head><Body>    <fieldset>    <legend>Input limits</legend>    <Divstyle= "font-size:12px; color:red;">1. All input boxes are required; 2. Mailboxes and phones must be digital</Div>        <inputtype= "text"class= "IPT"Data-name= "Name"placeholder= "Name" /><BR/>        <inputtype= "text"class= "IPT"Data-name= "Gender"placeholder= "Gender" /><BR/>        <inputtype= "text"class= "IPT"Data-name= "Age"placeholder= "Age" /><BR/>        <inputtype= "text"class= "IPT"Data-name= "Phone"Data-type= "num"placeholder= "Phone" /><BR/>        <inputtype= "text"class= "IPT"Data-name= "Postcode"Data-type= "num"placeholder= "Postcode" /><BR/>                <Buttononclick= "tt ()">Submit</Button>    </fieldset>    <Scripttype= "Text/javascript">    //all input boxes must be filled        varIPT=$("input"); functiontt () { for (varI=0; I<ipt.length; I++) {                if(Ipt.eq (i). Val ()=="") {alert (Ipt.eq (i). attr ("Data-name")+"cannot be empty"); return false; }            }        }            //mailboxes and phones must be numbers [of course also can be set directly to input type number]        varIptnum=$("input[data-type= ' num ']"); Iptnum.blur (function(){            varNum=/^[0-9]*$/; if(!num.test ($ ( This) (Val ())) {Alert ("Please enter a number")                return false; }        })    </Script></Body></HTML>

Input validation (non-plug-in)

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