Demonstrate Regex

HTML

<form id="myForm" method>
    Input Here: <input id = "inp" type="text" size="100%"/><br/>
    RegEx Here: <input id = "reg" type="text" size="100%"/><br/>
   <input id = "mathc" type="button" value="Try Match" onclick="testRegEx()"></input>
</form>

JavaScript

function testRegEx() {
     
  var re = new RegExp(myForm.reg.value);
  var te = myForm.inp.value;
    
    if (te.match(re)) {
    alert(re + " Regular Expression DID match " + te);
  } else {
    alert(re + " Regular Expression did NOT match " + te);
  }
}

function pasteDiv(myDiv)
{
    myForm.reg.value = myDiv.innerHTML;
}