Question

我具有搜索数据库的功能

app.limit = 5; // Set a default limit to ng-repeat
app.searchLimit = 0; // Set the default search page results limit to zero

app.search = function(searchKeyword, number) {
        // Check if a search keyword was provided
        if (searchKeyword) {
            // Check if the search keyword actually exists
            if (searchKeyword.length > 0) {
                app.limit = 0; // Reset the limit number while processing
                $scope.searchFilter = searchKeyword; // Set the search filter to the word provided by the user
                app.limit = number; // Set the number displayed to the number entered by the user
            } else {
                $scope.searchFilter = undefined; // Remove any keywords from filter
                app.limit = 0; // Reset search limit
            }
        } else {
            $scope.searchFilter = undefined; // Reset search limit
            app.limit = 0; // Set search limit to zero
        }
    };

以及使用搜索功能的输入。每次用户按下一个键，表格都会过滤

<input type="text" class="form-control" name="search"
       placeholder="search for..."
       ng-model="searchKeyword"
       ng-keyup="management.search(searchKeyword, number);">

问题是当我退格所有字符串并且没有输入，表格没有显示数据时，是否有任何方法可以检测输入是否为0，所以我可以使用函数management.showAll();函数

// Function: Show all results on page
    app.showAll = function() {
        app.limit = undefined; // Clear ng-repeat limit
        app.showMoreError = false; // Clear error message
    };

Answer 1

<script src="//unpkg.com/angular/angular.js"></script>
<body ng-app ng-init="value='0'">
     <input type="text" ng-model="value" />value={{value}}<br>
     <div ng-show="value=='0'">
        Input is "0"
     </div>
</body>

检测输入是否为0，然后显示所有值

1 个答案: