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How to Find Vowels in a String in JavaScript

Wednesday

Find  total number of vowels in a string in JavaScript:
                                                     This article explain how to find Vowels in a String and how to find total number of vowels in a string in JavaScript. I have written simple script for checking vowels in a string in JavaScript. I have used regular expression.





<html>
<head>

    <script>
function findVowels() {

var str=document.getElementById('name').value;  

   var vowelC = 0;
var total_findVowels="";
     for (var i = 0; i < str.length; i++) {

     if (str.charAt(i).match(/[a-zA-Z]/) != null) {

        // findVowels

        if (str.charAt(i).match(/[aeiouAEIOU]/))
  {

 total_findVowels=total_findVowels+str.charAt(i);            
 vowelC++;

        }

     }
   }
    document.getElementById('findVowels').value=total_findVowels;
 document.getElementById('findVowels_count').value=vowelC;
   alert("Total Number of findVowels: " + vowelC);
 

}
    </script>

</head>
<body>
<div style="background-color: skyblue; padding:20px">
    <table border="0" cellpadding=3" cellspacing="3">
        <tr>
            <td>
                Enter Input :
            </td>
            <td>
                <input type='text' value='' id='name' name='name'>
            </td>
        </tr>
        <tr>
            <td>
                Vowels Count :
            </td>
            <td>
                <input type='text' readonly="true" value='' id='findVowels_count' name='findVowels_count'>
            </td>
        </tr>
        <tr>
            <td>
                Vowels :
            </td>
            <td>
                <input type='text' readonly="true" value='' id='findVowels' name='findVowels'>
            </td>
        </tr>
        <tr>
            <td colspan="2">
                <input type='button' value='Check' onclick="javascript:findVowels();">
            </td>
        </tr>
    </table>
    </div>
</body>
</html>
               

Posted by Prince at 12:59 pm 0 comments

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C# Get All Files from a Folder

Tuesday

C# Get All Files from a Folder:
                                                This post shows how to get list of file names from a directory (including subdirectories). You can filter the list by specific extension.
To get file names from the specified directory, use static method Directory.Get­Files. Lets have these files and subfolders in "d:\YourDir" folder:

Get files from directory
Method Directory.GetFiles returns string array with files names (full paths).

C# Code
using System.IO;
string[] filePaths = Directory.GetFiles(@"d:\Images\");
// returns:
// "d:\Images\codingcluster.png"
// "d:\Images\home.jpg"


Get files from directory (with specified extension)
You can specify search pattern. You can use wildcard specifiers in the search pattern, e.g. „*.png“ to select files with the extension or „a*“ to select files beginning with letter, a“.

C# Code
string[] filePaths = Directory.GetFiles(@"d:\Images\", "*.png");
// returns:
// "c:\Images\codingcluster.png"

Get files from directory (including all sub directories)
If you want to search also in subfolders use parameter Search Option. A­ll Directories.

C# Code
string[] filePaths = Directory.GetFiles(@"d:\Images\", "*.png",
                                         SearchOption.AllDirectories);
// returns:
// "d:\Images\dcodingcluster.png"
// "d:\Images\Posts\header.png"

Share this post if it is useful to you. Thanks!.

Posted by Prince at 2:41 am 0 comments

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how to delete files in folder and subfolders in C#

c# - how to delete all files and folders in a directory?:
This examples shows how to delete all files (*.*) from a folder in C#.
First, you need to get the list of file names from the specified directory (using static method Directory.Get­Files. Then delete all files from the list.
Delete all files
C# code
using System.IO;
string[] filePaths = Directory.GetFiles(@"d:\Images\");
foreach (string filePath in filePaths)
  File.Delete(filePath);

Delete all files (one-row example)
To delete all files using one code line, you can use Array.ForEach with combination of anonymous method.
C# code
Array.ForEach(Directory.GetFiles(@"d:\Images\"),
              delegate(string path) { File.Delete(path); });
Share this post, if it is useful to you. Thanks!.

Posted by Prince at 2:37 am 0 comments

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