Friday, August 6, 2021

Count Vowels in AngularJS

 Machine  Problem

Write a program that will ask user to give a string and then the program will display the given string, and then it will count the number of vowels in the given string.

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Program Listing

<!-- index.htm

  Author   : Prof. Jake Rodriguez Pomperada, MAED-IT, MIT

  Date     : July 21, 2021  Wednesday  10:15 PM

  Place    : Bacolod City, Negros Occidental

  Websites : www.jakerpomperada.com and www.jakerpomperada.blogspot.com

  Email    : jakerpomperada@gmail.com

 -->

<html ng-app="mainApp">

<head>

<title>Count Vowels in AngularJS</title>

</head>

<style>

body {

font-family: arial;

font-size: 25px;

font-weight: bold;

}

</style>

<script type="text/javascript" src="angular.min.js">

</script>


<script type="text/javascript">


// AngularJS Controller Declaration

angular.module('mainApp', []).service('myService', function() {

  this.myFunc = function(val_1) {

   

     str_upper = val_1.toUpperCase();

    

    // find the count of vowels

    const count = str_upper.match(/[aeiou]/gi).length;


    // return number of vowels

    return count;

  };

}).controller('Count_Vowels_Controller', function($scope, myService) {

  $scope.check = function(val_1) {

    $scope.myUserService = myService.myFunc(val_1);

  }


});

</script>


<div ng-app="mainApp" ng-controller="Count_Vowels_Controller">

<form>

<table border="0" cellspacing=10>

<tr>Count Vowels in AngularJS</tr>

<tr>

  <td>Enter a String</td>

<td><input type="text" ng-model="val_1" ng-init="val_1=''" ng-keyup="check(val_1)"/></td>

</tr>

<table>

</form><br>

<b>The given string {{val_1 | uppercase }}. </b><br><br>

   <b>The number of vowels is {{myUserService}}.</b>

</div>

</body>

</html>



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