how to get jquery.couch.app.js to work with IE8
couchapp, internet-explorer, javascript, jquery
Solution
forEach() is a function that's recently added to the JavaScript specification, so not all browsers support it.
You can read about it at MDC: https://developer.mozilla.org/en/Core_JavaScript_1.5_Reference/Global_Objects/Array/forEach
Under "Compatibility", you'll find a snippet that makes forEach() available.
if (!Array.prototype.forEach)
{
Array.prototype.forEach = function(fun /*, thisp*/)
{
var len = this.length >>> 0;
if (typeof fun != "function")
throw new TypeError();
var thisp = arguments[1];
for (var i = 0; i < len; i++)
{
if (i in this)
fun.call(thisp, this[i], i, this);
}
};
}
So, copy and paste the code above to your script and forEach() should work.
Problem
I have tested this on Windows XP SP3 in IE7 and IE8 ( in all compatibility modes ) and Windows 7 Ultimate in IE8 (in all compatiblity modes) and it fails the same way on both. I am running the latest HEAD from the the couchapp repository. This works fine on my OSX 10.6.3 development machine. I have tested with Chrome 4.1.249.1064 (45376) and Firefox 3.6 on Windows 7 Ultimate and they both work fine. As do both Safari 4 and Firefox 3.6 on OSX 10.6.3 Here is the error message Webpage error details User Agent: Mozilla/4.0 (compatible; MSIE 8.0; Windows NT 6.1; Trident/4.0; SLCC2; .NET CLR 2.0.50727; .NET CLR 3.5.30729; .NET CLR 3.0.30729; Media Center PC 6.0) Timestamp: Wed, 28 Apr 2010 03:32:55 UTC Message: Object doesn't support this property or method Line: 159 Char: 7 Code: 0 URI: http://192.168.0.105:5984/test/_design/test/vendor/couchapp/jquery.couch.app.js and here is the "offending" bit of code, which works on Chrome, Firefox and Safari just fine. If says the failure is on the line that starts `qs.forEach()` from the file jquery.couch.app.js ``` 157 var qs = document.location.search.replace(/^\?/,'').split('&'); 158 var q = {}; 159 qs.forEach(function(param) { 160 var ps = param.split('='); 161 var k = decodeURIComponent(ps[0]); 162 var v = decodeURIComponent(ps[1]); 163 if (["startkey", "endkey", "key"].indexOf(k) != -1) { 164 q[k] = JSON.parse(v); 165 } else { 166 q[k] = v; 167 } 168 }); ```