AngularJS ng-hide用法及代碼示例

AngluarJS中的ng-hide指令用於顯示或隱藏指定的HTML元素。如果ng-hide屬性中給出的表達式為true，則HTML元素將隱藏。在AngularJS中，有一個名為ng-hide的預定義類，該類用於將顯示設置為無。

用法:

 <element ng-hide="expression"> Contents... </element>

範例1：本示例使用ng-hide指令顯示輸入的數字是否為5的倍數。

<!DOCTYPE html> 
<html> 
      
<head> 
    <title>ng-focus Directive</title> 
  
    <script src= 
"https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"> 
    </script> 
</head> 
  
<body ng-app="app" style="text-align:center"> 
    <div ng-controller="geek" ng-init="val=0"> 
          
        <h1 style="color:green">GeeksforGeeks</h1> 
          
        <h2>ng-click Directive</h2> 
          
        Enter a number:<input type="text" ng-model="val" 
                ng-keyup="check(val)"> 
   
        <div ng-hide="hide"> 
            <h3> 
                The number is multiple of 5 
            </h3> 
        </div> 
          
        <div ng-show="hide"> 
            <h3> 
                The number is not a multiple of 5 
            </h3> 
        </div> 
    </div> 
      
    <script> 
        var app = angular.module("app", []); 
        app.controller('geek', ['$scope', function ($scope) { 
            $scope.check = function (val) { 
            $scope.hide = val % 5 == 0 ? false:true; 
            }; 
        }]); 
    </script> 
</body> 
  
</html>

輸出：
nghide

範例2：本示例使用ng-hide指令隱藏內容。

<!DOCTYPE html> 
<html> 
    <script src="https://ajax.googleapis.com/ajax/libs/angularjs/ 
    1.6.9/angular.min.js"></script> 
    <head> 
        <title>ng-hide Directive</title> 
    </head> 
    <body> 
        <div ng-app="app" ng-controller="geek"  style="text-align:center"> 
            <h1 style="color:green">GeeksforGeeks</h1> 
            <h2>ng-hide Directive</h2> 
            <input id="chbhide" type="checkbox" ng-model="hide" /> 
            <label for="chbhide"> 
                Hide Paragraph 
            </label> 
            <p ng-hide="hide" style="background:green; color:white;  
            font-size:14px; width:35%; padding:10px;"> 
                Hide this paragraph using ng-hide 
            </p> 
        </div> 
        <script> 
            var myapp = angular.module("app", []); 
            myapp.controller("geek", function ($scope) { 
            $scope.hide = false; 
            }); 
        </script> 
    </body> 
</html>

輸出：
點擊之前：
nghide
單擊後：
nghide

相關用法

注：本文由純淨天空篩選整理自Vishal Chaudhary 2大神的英文原創作品 AngularJS | ng-hide Directive。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。