Global.String.prototype.isAlpha ()
function returns true if the string contains only characters a-z

  • Returns
    Boolean true in case string is alpha, false otherwise
Sourcecode in /home/hannes/helma/modules/core/String.js:
269:   String.prototype.isAlpha = function() {
270:       if (!this.length)
271:           return false;
272:       return !String.APATTERN.test(this);
273:   }