jesh Posted December 12, 2006 Share Posted December 12, 2006 I conducted a test with the following code: <html><body><form><input type="checkbox" id="check1" /><input type="checkbox" id="check2" /><input type="checkbox" id="check3" /><input type="checkbox" id="check4" /><input type="checkbox" id="check5" /></form><script type="text/javascript">var inputs = document.getElementsByTagName("input");for(var i in inputs){ alert("For-In: i = " + i);}for(var i = 0; i < inputs.length; i++){ alert("Typical For: i = " + i);}</script></body></html> On IE in WindowsXP, and Firefox on XP and on the Mac, both for loops execute. However, on Safari, only the second for loop executes. Can someone please verify this for me and perhaps point me to a link which explains it in greater detail?Thanks! Link to comment Share on other sites More sharing options...
aspnetguy Posted December 12, 2006 Share Posted December 12, 2006 not sure about safari but for in loops in general can have problems when the Array and Object objects have been extended.My recommendation is stick with good old for loops Link to comment Share on other sites More sharing options...
jesh Posted December 12, 2006 Author Share Posted December 12, 2006 My recommendation is stick with good old for loopsI had only recently started trying out the for(i in array) loops but they don't quite act the same way as foreach(x in array) would in C# or PHP so I'll quit playing around with them and stick to the traditional for loops. Link to comment Share on other sites More sharing options...
aspnetguy Posted December 13, 2006 Share Posted December 13, 2006 this article explains one situation that can break for in loops http://www.andrewdupont.net/2006/05/18/jav...idered-harmful/If you use toolkits this could be an issue for you. I have just desided to avoid them, that way I am guarenteed to have no trouble with them Link to comment Share on other sites More sharing options...
jesh Posted December 13, 2006 Author Share Posted December 13, 2006 this article explains one situation that can break for in loops http://www.andrewdupont.net/2006/05/18/jav...idered-harmful/If you use toolkits this could be an issue for you. I have just desided to avoid them, that way I am guarenteed to have no trouble with them Nice link! I was just about to ask in a different post "Can you use strings as the keys/indices in arrays in javascript?" and this answers my question perfectly with "NO!". Yeah, I've never used the for in loops until recently. When I was first learning C#, I looked for a foreach equivalent in javascript but didn't find one so I stuck with the typical for loop. When I came across the for in loop, I figured that was my answer. But, like you, I'll just go back to sticking with the typical for loops from now on. Link to comment Share on other sites More sharing options...
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