HTML
<input type="text" id="field"> <input type="button" value="Validate" onClick="textfield()">
JS
function textfield(){
var firstname = /^[a-zA-Z]*$/;
var fvalue = document.getElementById("field").value;
alert(fvalue);
if(!firstname.test(fvalue)){
alert("Invalid");
}
}
Example











0 comments:
Post a Comment