String Object Method Help

bigalo · #1 11-20-2009, 02:43 PM

Hello,

I was able to solve an issue I had in previous post in writing some code to grab a section of a cookie value string (2 letter state ex MD) and check against it to do something. That was easy because the state was at the end of the string and all I had to do was use the slice() method. Now I was to be able to grab the 2 letter state from a string that looks like this:

BALTIMORE, MD|blah blah|blah blah|blah blah (the real cookie value string will always be separated with pipes (|))

Can anyone please help?

Thanks in advance!

Code:

<HTML>
<HEAD>
<TITLE></TITLE>
<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.3/jquery.min.js"></script>
<SCRIPT LANUAGE="JavaScript">

function setCookie(name, value, expires, path, domain, secure) {
    document.cookie= name + "=" + escape(value) +
        ((expires) ? "; expires=" + expires.toGMTString() : "") +
        ((path) ? "; path=" + path : "") +
        ((domain) ? "; domain=" + domain : "") +
        ((secure) ? "; secure" : "");
}
function getCookie(name) {
    var dc = document.cookie;
    var prefix = name + "=";
    var begin = dc.indexOf("; " + prefix);
    if (begin == -1) {
        begin = dc.indexOf(prefix);
        if (begin != 0) return null;
    } else {
        begin += 2;
    }
    var end = document.cookie.indexOf(";", begin);
    if (end == -1) {
        end = dc.length;
    }
    return unescape(dc.substring(begin + prefix.length, end));
}
</SCRIPT>
</HEAD>
<BODY>
<script>
 $(function(){ 
	 $('div').each(function(){
		 if($(this).hasClass('stateSelect1')){ 
		 	 if (getCookie("location")!=null){
			 var state = getCookie("location").slice(-2).toLowerCase();
			 var stateArray = [];
			 stateArray = $(this).attr('rel').toLowerCase().split(',');
				 if($.inArray(state,stateArray) >= 0){ 
				 $(document).ready(function(){
				 	$(".stateSelect0").css("display","none");
					$(".stateSelect1").css("display","block");
				  });
				 }
				}  	 
		 	} 
	 }); 
 });
 </script>
<strong>Step 1.  Copy and paste in cookie set text field:</strong> <br>
<br>
<strong>Show Image1:</strong><br>
CHARLOTTE, NC|blah blah|blah blah|blah blah|blah blah<br>
BALTIMORE, MD|blah blah|blah blah|blah blah<br>
<br>
<strong>Show Image2:</strong><br>
COLUMBIA, SC|blah blah|blah blah|blah blah<br>
RESTON, VA|blah blah|blah blah|blah blah<br>
<br>
<strong>Show Image3:</strong><br>
LOS ANGELES, CA|blah blah|blah blah|blah blah<br>
SEATLE, WA|blah blah|blah blah|blah blah<br>
<br>
<br>
<strong>Step 2.</strong>
<input type="button" value="Set Cookie"  onclick='setCookie("location", prompt("Enter your location"))' />
<br>
<br>
<strong>Step 3.</strong> Now refresh page. <br>
<br>
<style>
.default{ border:3px solid limegreen; margin-bottom:5px; width:200px}
.div1{ border:3px solid red; margin-bottom:5px; width:200px}
.div2 { border:3px solid purple; margin-bottom:5px; width:200px}
.div3 { border:3px solid yellow; margin-bottom:5px; width:200px}
.div4 { border:3px solid blue; margin-bottom:5px; width:200px}
</style>
<!--DEFAULT IMAGE IF NO COOKIE SET OR NON LISTED STATE-->
<div class="stateSelect0 default"> DEFAULT IMAGE </div>
<!--DEFAULT IMAGE IF NO COOKIE SET OR NON LISTED STATE-->
<div class="stateSelect1 div1" rel="NC,MD" style="display:none">Image 1 - DIV 1</div>
<div class="stateSelect2 div2" rel="SC,VA" style="display:none">Image 2 - DIV 2</div>
<div class="stateSelect3 div3" rel="WA,CA" style="display:none">Image 3 - DIV 3</div>
</BODY>
</HTML>

JMRKER · #2 11-20-2009, 03:26 PM

How about this:

Code:

String.prototype.splitAtChar=function() {
	return this.split(this.charAt(this.indexOf(arguments[0])));
}

Called via following test code:

Code:

        str = 'abc|defdef|ghighighi';
        tmp = str.splitAtChar('|');
    	alert(str+'\n\nsplitAtChar("|"): '+tmp+'\n\n'+tmp.join('\n'));

bigalo · #3 11-20-2009, 03:40 PM

So, if my string looked like this:

BALTIMORE, MD|blah blah|blah blah|blah blah

How doI grab the MD (or any 2 letter state) and maybe alert that?

Nedals · #4 11-20-2009, 03:53 PM

Code:

var str = 'BALTIMORE, MD|blah blah|blah blah|blah blah'
var state = str.match(/,\s(\w+)\|/);
alert(state[1]);

rnd me · #5 11-21-2009, 03:34 AM

Code:

var str = 'BALTIMORE, MD|blah blah|blah blah|blah blah'
alert(str.replace(/.*\s([A-Z]{2}).*/g,"$1"));

bigalo · #6 11-23-2009, 08:48 AM

Thanks so much guys! the regular expression worked great!

Cheers!

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