如何在< script>中执行foreach循环标签 ？请注意它不是< script type =" text / javascript"> [英] How do I perform foreach loop inside <script> tag ? note its not <script type="text/javascript">

问题描述

  var  a = []; 
  var  b = []; 
 @foreach（ var  filename  in  Model.File）
 {
 @：a.push（'  @ filename'）; 
} 
 @foreach（ var  errortext  in  Model.Error）
 {
 @：b.push（'  @ errortext'）; 
} 

上面给了我：

< pre lang =text> a [0] =File1;
a [1] =File2;
b [0] =无法打开报告附件[iRefpdfFile.PDF]。这不会对以任何方式在线提交此文件产生不利影响。错误：无法处理iref流。此PDF需要重新保存Acrobat 5兼容的方式或原始保存选项已更改，以便它不使用此功能。
b [1] =这是一条演示错误消息。

保持文件名和错误的顺序，即b [0]是[0]的错误消息。

但是我想显示每个文件的警报及其连续的错误消息。我怎么做？



我尝试过的事情：



我尝试执行@foreach循环，但这不允许我使用alert关键字或任何javascript方法。

请注意代码在< script>内部标签而不是里面< script type =text / javascript>

解决方案

inArray [ ^ ]方法需要一个数组作为其第二个参数。您正在传递字符串。



要查找字符串中子字符串的索引，请使用 indexOf [ ^ ]：

  var  texttosearchfrom = a [ 0 ]; 
  var  found = texttosearchfrom.indexOf（'  Acrobat'）; 

如果您想要不区分大小写，请使用 search [ ^ ]，不区分大小写正则表达式 [ ^ ]：

  var  texttosearchfrom = a [ 0 ]; 
  var  found = texttosearchfrom.search（/ Acrobat / i）; 

var a = [];
var b=[];
@foreach (var filename in Model.File)
{
    @:a.push('@filename');
}
@foreach (var errortext in Model.Error)
{
    @:b.push('@errortext');
}

The above gives me :

a[0]="File1";
a[1]="File2";
b[0]= "Unable to open report attachment [iRefpdfFile.PDF]. This will not adversely affect the submission of this file online in any way. Error: Cannot handle iref streams. This PDF will need to be resaved in an Acrobat 5 compatable manner or with the original save options changed so that it does not to use this feature."
b[1]="This is a demo error message."

The sequence of filename and error is maintained that is b[0] is a[0]'s error message.
But i want to display alert for every file and its consequtive error message. How do i do that ?

What I have tried:

I tried to perform @foreach loop but that doesnt allow me to use alert keyword or any javascript method .
Note the code is inside <script> tag and not inside <script type="text/javascript">

解决方案

The inArray[^] method expects an array as its second parameter. You are passing a string.

To find the index of a substring within the string, use indexOf[^]:

var texttosearchfrom = a[0];
var found = texttosearchfrom.indexOf('Acrobat');

If you want a case-insensitive match, then use search[^] with a case-insensitive Regular Expression[^] :

var texttosearchfrom = a[0];
var found = texttosearchfrom.search(/Acrobat/i);

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