📄 ch8_examp1.htm

📁 javascript source code part1

💻 HTM

字号:

<HTML>
<HEAD>
<SCRIPT LANGUAGE=JavaScript>
function splitAndReverseText(textAreaControl)
{
   var textToSplit = textAreaControl.value;
   var textArray = textToSplit.split('\r\n');

   var numberOfParts = 0;
   numberOfParts = textArray.length;

   var reversedString = "";
   var indexCount;

   for (indexCount = numberOfParts - 1; indexCount >= 0; indexCount--)
   {
      reversedString = reversedString + textArray[indexCount];
      if (indexCount > 0)
      {
         reversedString = reversedString + "\r\n";
      }
   }

   textAreaControl.value = reversedString;
}
</SCRIPT>
</HEAD>

<BODY>
<FORM NAME=form1>
<TEXTAREA ROWS=20 COLS=40 NAME=textarea1 WRAP=soft>Line 1
Line 2
Line 3
Line 4</TEXTAREA>
<BR>
<INPUT TYPE="button" VALUE="Reverse Line Order" NAME=buttonSplit
   onclick="splitAndReverseText(document.form1.textarea1)">
</FORM>
</BODY>
</HTML>

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