Question

Is there a way through some sort of meta or pre-processor to tell JavaScript that the word AND equates to && and the word OR equates to || and <> equates to !===?

Maybe equate THEN to {

END to }

NOT to !

Answer 1

No. Don’t do it.

… well, there is a way, but don’t do it anyways…

Here it is….

function loadScriptWithReplacements(url) {
     try {
          var rq = null;
          if(window.XMLHttpRequest)
               rq = new XMLHttpRequest();
          else if(window.ActiveXObject) {
               try {
                    rq = new ActiveXObject("Msxml2.XMLHTTP");
               } catch(o) {
                    rq = new ActiveXObject("Microsoft.XMLHTTP");
               }
          }
          rq.open("GET", url, false);
          rq.send(null);
          document.write('<script>' + rq.responseText.replace(/(and|or|\<\>)/g, function(r) {
               return {
                    'and': '&&',
                    'or' : '||',
                    '<>' : '!=='
               }[r];
          }) + '</script>');
     } catch(ex) {
          // We can't have a fallback because you're using invalid JavaScript :(
          throw new Error("Could not use Ajax.");
     }
}

But, DO NOT DO THAT! You could also perform the replacements server-side, but DON’T DO THAT EITHER!

Doing it server-side increases the strain on your server, doing something that could be avoided by just remembering how to write JavaScript correctly.