program-test/search.html at master · thanathe/program-test · GitHub

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<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
    console.log('my ctrl')
    $scope.algo = 'linear';
    $scope.search= function() {
        var inputData = $scope.input_text.split(',');
        if ($scope.algo == 'linear') {
            linearSearch(inputData, $scope.search_text);
        } else if ($scope.algo == 'binary') {
            binarySearch(inputData, $scope.search_text);
        } else if ($scope.algo == 'bubble') {
            bubbleSort(angular.copy(inputData), $scope.search_text);
        }
    };

    var linearSearch = function(inputData, searchText) {
        $scope.displayResult = [];
        $scope.displayList = inputData;
        $scope.displaySearch = searchText;
        for(var i=0; i<inputData.length; i++) {
            if (inputData[i] == searchText) {
                $scope.displayResult.push("ROUND " + (i+1) + " FOUND: " + inputData[i] + '==' + searchText);
                break;
            } else {
                $scope.displayResult.push("ROUND " + (i+1) + "===> " + inputData[i] + '!=' + searchText);
            }
        }
    }

    var bubbleSort = function (inputData) {
        $scope.displayResult = [];
        $scope.displayList = inputData;
        var sorted = false;
        var n = inputData.length-1;
        var round = 0;
        while(!sorted) {
            sorted = true;
            for (var i=0; i < n; i++) {
                console.log('i', i, i+1);
                console.log('compare',  inputData[i], inputData[i+1]);
                if (parseInt(inputData[i]) > parseInt(inputData[i+1])) {
                    var temp = inputData[i];
                    inputData[i] = inputData[i+1];
                    inputData[i+1] = temp;
                    sorted = false;
                    console.log('swap', i, i+1,  inputData[i], inputData[i+1], inputData);
                }
            }
            console.log(inputData);
            // last char sorted
            n--;
        }
    }


    var binarySearch = function (inputData, searchText) {
        $scope.displayResult = [];
        var sortedData = inputData.sort();
        $scope.displayList = sortedData;
        $scope.displaySearch = searchText;
        var min = 1;
        var max = sortedData.length;
        var mid = Math.floor((min+max)/2);
        console.log(min, max, mid, $scope.algo);
        var round = 0;
        var isFound = false;
        while (!isFound) {
            round++;
            console.log('round', round, 'mid min max', mid, min, max,'value', sortedData[mid]);
            if (max < min) {
                if (sortedData[max] == searchText) {
                    $scope.displayResult.push('ROUND ' + round + "==>" + sortedData[max] + '==' + searchText);
                }
                break;
            }

            var mid = min + Math.floor((max-min)/2);

            if (sortedData[mid] < searchText) {
                min = mid+1;
                $scope.displayResult.push("ROUND " + round + "==>" + sortedData[mid] + "!=" + searchText);
            }
            if (sortedData[mid] > searchText) {
                max = mid-1;
                $scope.displayResult.push("ROUND " + round + "==>" + sortedData[mid] + "!=" + searchText);
            }

            if (sortedData[mid] == searchText) {
                $scope.displayResult.push('ROUND ' + round + "==>" + sortedData[mid] + '==' + searchText);
                break;
            }
            if (round > sortedData.length) break;
        }

    };
});

</script>
<!DOCTYPE html>
<html lang="en-US" ng-app="myApp">
<meta charset="utf-8"/>
<body>
    <div ng-controller="myCtrl">
        List <input type="text" name="input" ng-model="input_text"/>
        <br/>
        ค้นหา <input type="text" name="search_text" ng-model="search_text"/> <button ng-click="search(algo)">ค้นหา</button>
        <br/>
        ประเภทการค้นหา
        <br/>
        {{algo}}
        <select name="algo" ng-model="algo">
            <option value="linear" ng-selected="algo == 'linear'">Linear Search</option>
            <option value="binary" ng-selected="algo == 'binary'">Binary Search</option>
            <option value="bubble" ng-selected="algo == 'bubble'">Bubble Search</option>
        </select><br/>
        Result <br/>

        List: {{displayList}}<br/>
        Search:  {{displaySearch}}<br>
        Result ::: <br>
        <div style="border: solid 1px;">
            <p ng-repeat="row in displayResult">
               {{row}}
            </p>
        </div>
    </div>

</body>
</html>