Ryan's help on RegEXP

by Jason Land

HTML

<span id="input">+3==+r+t+</span>
<h1 id="result">Error</h1>

JavaScript

var regAlpha = /[A-Z,a-z]/i;
var sen = document.getElementById('input').innerHTML;

var result = "True";

if (regAlpha.test(sen.charAt(0)) || regAlpha.test(sen.charAt(sen.length - 1))) {
    result = "False";
}



// Show the result in the "result" h1
var span = document.getElementById('result');

while( span.firstChild ) {
    span.removeChild( span.firstChild );
}
span.appendChild( document.createTextNode(result) );