這裏似乎有一些IE不兼容的javascript。有沒有瀏覽器兼容性專家？

Question

此JavaScript在FF v3.5.3中正常工作，但不在IE 6.02中。能夠在IE JS兼容性方面有經驗的人可以查看可能的不兼容問題的代碼嗎？我沒有包含所有被調用的函數的代碼，因爲這會使我的代碼樣本很大，但我已經在IE中測試了這些函數，並且它們工作正常。我認爲問題在於我如何遍歷JSON數據。謝謝！

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    cities[key]["city_link"] = cityLink; 
} drawCities(cities); 
    param = { "routes": [{ "id": 1, "count": 9},{ "id": 2, "count": 14},{ "id": 3, "count": 10},{ "id": 4, "count": 8},{ "id": 5, "count": 7},{ "id": 6, "count": 7},{ "id": 7, "count": 5},{ "id": 8, "count": 7},{ "id": 9, "count": 6},{ "id": 10, "count": 12},{ "id": 11, "count": 8},{ "id": 12, "count": 8},{ "id": 13, "count": 6},{ "id": 14, "count": 8},{ "id": 15, "count": 4},{ "id": 16, "count": 7},{ "id": 17, "count": 4},{ "id": 18, "count": 8},{ "id": 19, "count": 6},{ "id": 20, "count": 5},{ "id": 21, "count": 5},{ "id": 22, "count": 10},{ "id": 23, "count": 10},{ "id": 24, "count": 9},{ "id": 25, "count": 6},{ "id": 26, "count": 1},{ "id": 27, "count": 4},{ "id": 28, "count": 10},{ "id": 29, "count": 6},{ "id": 30, "count": 6},{ "id": 31, "count": 2},{ "id": 32, "count": 9},{ "id": 33, "count": 6},{ "id": 34, "count": 4},{ "id": 35, "count": 6},{ "id": 36, "count": 5},{ "id": 37, "count": 5},{ "id": 38, "count": 5},{ "id": 39, "count": 5},{ "id": 40, "count": 2},{ "id": 41, "count": 6},{ "id": 42, "count": 7},{ "id": 43, "count": 10},{ "id": 44, "count": 10},{ "id": 45, "count": 3},{ "id": 46, "count": 5},{ "id": 47, "count": 6},{ "id": 48, "count": 9},{ "id": 49, "count": 7},{ "id": 50, "count": 7},{ "id": 51, "count": 5},{ "id": 52, "count": 10},{ "id": 53, "count": 8},{ "id": 54, "count": 7},{ "id": 55, "count": 5},{ "id": 56, "count": 7},{ "id": 57, "count": 4},{ "id": 58, "count": 4},{ "id": 59, "count": 8},{ "id": 60, "count": 6},{ "id": 61, "count": 4},{ "id": 62, "count": 8},{ "id": 63, "count": 3},{ "id": 64, "count": 6},{ "id": 65, "count": 3},{ "id": 66, "count": 7},{ "id": 67, "count": 8},{ "id": 68, "count": 4},{ "id": 69, "count": 6},{ "id": 70, "count": 8},{ "id": 71, "count": 11},{ "id": 72, "count": 11},{ "id": 73, "count": 9},{ "id": 74, "count": 4},{ "id": 75, "count": 8}] }; 
    var ajax = new Ajax(); 
    ajax.post("http://railsacrosseurope.com/turn/update_track", param); 
</script> 

Answer 1

如果沒有一些JS庫工作，因爲我可以看到你不，我sugest訪問下面的網站，並檢查你的代碼，而解決已報告這些錯誤。這可能會讓你對發生的事情有所瞭解。

http://jslint.com/

Answer 2

通過jslint運行你的代碼，我得到這個警告

Problem at line 32 character 5: Bad for in variable 'key'. 

可能是一個DOM全局​​變量或東西。改變它，看看會發生什麼。此外，你的for..in循環不會做它應該的。它用於遍歷對象屬性，而不是通過數組的元素。使用帶索引的普通循環。

Answer 3

我發現了這個問題。它不在這裏列出的代碼中。我已經將一些變量聲明爲'不能識別的'const'，並且我還在使用索引for循環替換的數組上使用for..in構造。一旦我在IE8中發現了js調試器，一切就都到位了。這大大加速了事情！現在一切都看起來不錯。感謝所有的幫助。