javascript 如何防止由于不需要的递归而导致 IE 中的堆栈溢出
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How to prevent a stack overflow in IE due to unwanted recursion
提问by Eldros
I've been searching since a while, to no avail.
我一直在寻找一段时间，无济于事。
On a long form, I'm doing checks with javascript, and used the attribute "onchange" to do them. Recently, I discovered that on IE, the "onpropertychange" attribute should be used, as the "onchange" event is not handled correctly.
在较长的表格中，我正在使用 javascript 进行检查，并使用属性“onchange”来进行检查。最近，我发现在 IE 上，应该使用“onpropertychange”属性，因为“onchange”事件没有正确处理。
So now, I have for example this kind of field (not all the fields have onKeyDown or onKeyUp events):
所以现在，我有这样的字段（并非所有字段都有 onKeyDown 或 onKeyUp 事件）：
<textarea name="shdescription" rows="1" cols="75" onKeyDown="textCounter(this,'shdesccounter',65)"
onKeyUp="textCounter(this,'shdesccounter',65)" onchange="checkFormValue();" onpropertychange="checkFormValue();"></textarea>
And now each time I make a change on a field, then it takes a few seconds before registring the change and making the check. (and more when the change is made on the textarea I described.)
现在每次我对一个字段进行更改时，都需要几秒钟的时间才能注册更改并进行检查。（以及在我描述的 textarea 上进行更改时更多。）
Firing the IE F12 debugger, I noticed that a lot of "SCRIPT28: Out of stack space"and "SCRIPT2343: Stack overflow at line:"are fired. Following the execution of the script step by step, I noticed that the script is looping between two different ajax call to PHP scripts. I'm not sure we can talk of recursion actually, as I don't see any direct link between the two function.
启动 IE F12 调试器时，我注意到很多“SCRIPT28：堆栈空间不足”和“SCRIPT2343：行堆栈溢出：”被触发。随着脚本的逐步执行，我注意到脚本在对 PHP 脚本的两个不同 ajax 调用之间循环。我不确定我们实际上可以谈论递归，因为我没有看到这两个函数之间有任何直接联系。
So I can think only of two possibilities: either there are change triggered in the field which trigger the the ajax call again, or I am doing something wrong with my ajax calls.
所以我只能想到两种可能性：要么是字段中触发的更改再次触发了ajax调用，要么我的ajax调用有问题。
Where should I look to resolve my problem? If there is need for more information, don't hesitate to ask.
我应该去哪里解决我的问题？如果需要更多信息，请随时询问。
PS: I don't have any problem of this sort with FF/Chrome/Opera.
PS：我对 FF/Chrome/Opera 没有任何此类问题。
采纳答案by m.edmondson
I'll bet that one of the functions checkFormValue()or textCounter()is modifying the textbox in a way that is causing another event to fire which goes on to endlessly loop.
我敢打赌，其中一个函数checkFormValue()或textCounter()正在以某种方式修改文本框，导致另一个事件触发，该事件继续无限循环。
Try using onBlur.
尝试使用 onBlur。
