这个脚本到底在做什么？试图理解 JavaScript
<script type="text/javascript">
var limitNum = 100;
var message = 'You are not able to type more than ' + limitNum + ' symbols!';
function checkLength(validator, args)
{
var editor = <%=editortextbox1.ClientID%>; // get a reference to RadEditor
var editorText = editor.GetText(true); //get the HTML content of the control
args.IsValid = editorText.length > limitNum && editorText.length < 15;
}
</script>
该脚本是否检查 editortextbox1 是否为空？如果不是，它在做什么？另外，如果我确实想检查 editortextbox1 是否为空，我应该如何修改这个脚本。哦，如果我希望这个脚本针对我页面上的所有文本框运行，我需要做什么更改？就像我有 2-3 个文本框（实际上是 RadEditors）。我想检查所有编辑器中的空值。我应该如何修改这个脚本？
<script type="text/javascript">
var limitNum = 100;
var message = 'You are not able to type more than ' + limitNum + ' symbols!';
function checkLength(validator, args)
{
var editor = <%=editortextbox1.ClientID%>; // get a reference to RadEditor
var editorText = editor.GetText(true); //get the HTML content of the control
args.IsValid = editorText.length > limitNum && editorText.length < 15;
}
</script>
is this script checking if editortextbox1 is empty or not ? if not, what is it doing? Also, if I do want to check that editortextbox1 is empty or not, how should I modify this script. Oh and what if I want this script to run for ALL the Textboxes on my page, what change do i need to make then?? Like I have 2-3 Text boxes(which are actually RadEditors). I want to check for null values in all the editors. How should I modify this script??
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它确保
editortextbox1字段少于 15 个字符，并且多于 100 个字符......这意味着它永远不会有效。看起来它应该是：成为一张有效的支票。
It's ensuring that the
editortextbox1field has less than 15 characters, and more then than 100...meaning it can never be valid. It seems like it should be:to be a valid check.
目前 args.IsValid 将始终为 false：
任何值都不能大于 100 且小于 15。
无论如何，我相信这个函数当前的目的是返回某些文本框的长度的有效性（可能是为了检查最小和最大长度），无论如何脚本本身不执行任何操作，但是调用这个函数的代码会执行任何操作。
currently args.IsValid will be always false:
nothing can be greater than 100 and less than 15.
Anyway i believe that this function was currently meant to return the validity of the length of certain Textbox (probably to check a minimum and maximum length), anyways the script itself doesn't do anything, but the code that calls this function does.
该脚本定义了两个变量和一个函数。它不检查任何东西。
执行该函数时，它将
args.IsValid设置为false。这是因为editorText.length >第100章editorText.length < 15始终为false。The script defines two variables and a function. It does not check anything.
When the function is executed, it sets
args.IsValidtofalse. This is becauseeditorText.length > 100 && editorText.length < 15is alwaysfalse.