Hi rani,
The array filters are used to filter an array collection with the help of keys. The keys can be OrderBy, Uppercase, Lowercase, Filter etc.
In this below example, I am going to filter a Customers array collection by using the filter keys (Name and Uppercase).
HTML
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
    <title></title>
    <style type="text/css">
        body
        {
            font-family: Arial;
            font-size: 10pt;
        }
        table
        {
            border: 1px solid #ccc;
        }
        table th
        {
            background-color: #F7F7F7;
            color: #333;
            font-weight: bold;
        }
        table th, table td
        {
            padding: 5px;
            border-color: #ccc;
        }
    </style>
    <script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.8/angular.min.js"></script>
    <script type="text/javascript">
        var app = angular.module("MyApp", []);
        app.controller("MyController", function ($scope) {
            $scope.Customers = [
                { Id: 1, Name: "John Hammond", Country: "United States" },
                { Id: 2, Name: "Mudassar Khan", Country: "India" },
                { Id: 3, Name: "Suzanne Mathews", Country: "France" },
                { Id: 4, Name: "Robert Schidner", Country: "Russia" }
            ];
        });
    </script>
</head>
<body>
    <div ng-app="MyApp" ng-controller="MyController">
        <h3>Filter Only Name Column</h3>
        Enter Name : <input ng-model="search.Name" type="text" placeholder="Enter name">
        <hr />
        <table>
            <thead>
                <tr>
                    <th>Id</th>
                    <th>Name</th>
                    <th>Country</th>
                </tr>
            </thead>
            <tbody ng-repeat="customer in Customers | filter:search">
                <tr>
                    <td>{{customer.Id }}</td>
                    <td>{{customer.Name }}</td>
                    <td>{{customer.Country | uppercase }}</td>
                </tr>
            </tbody>
        </table>
        <hr />
        <h3>Filter All Column</h3>
        Enter Name : <input ng-model="search1" type="text" placeholder="Enter name">
        <hr />
        <table>
            <thead>
                <tr>
                    <th>Id</th>
                    <th>Name</th>
                    <th>Country</th>
                </tr>
            </thead>
            <tbody ng-repeat="customer in Customers | filter:search1">
                <tr>
                    <td>{{customer.Id }}</td>
                    <td>{{customer.Name }}</td>
                    <td>{{customer.Country | uppercase }}</td>
                </tr>
            </tbody>
        </table>
    </div>
</body>
</html>
 
Demo