AngularJS 事件指令/input相关指令/样式指令/DOM操作指令详解

Posted 2020-09-28

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1.AngularJS 事件指令

(1)ng-click 鼠标点击事件

[html]

<button ng-click="count = count + 1" ng-init="count=0"> Increment </button>

<span> count: {{count}} </span>

(2)ng-dblclick 鼠标双击事件

[html]

<button ng-dblclick="count = count + 1" ng-init="count=0">
Increment (on double click)
</button>
count: {{count}}

(3)ng-mousedown 鼠标点击事件

[html]

<button ng-mousedown="count = count + 1" ng-init="count=0">
Increment (on mouse down)
</button>
count: {{count}}

(4)ng-mouseup 鼠标点击事件

[html]

<button ng-mouseup="count = count + 1" ng-init="count=0">
Increment (on mouse down)
</button>
count: {{count}}

(5)ng-mouseenter 鼠标移到上面触发事件

[html]

<button ng-mouseenter="count = count + 1" ng-init="count=0">
Increment (when mouse enters)
</button>
count: {{count}}

(6)ng-mouseleave 鼠标离开触发事件

[html]

<button ng-mouseleave="count = count + 1" ng-init="count=0">
Increment (when mouse leaves)
</button>
count: {{count}}

(7)ng-mousemove 鼠标在上面移动即可触发

[html]

<button ng-mousemove="count = count + 1" ng-init="count=0">
Increment (when mouse moves)
</button>
count: {{count}}

(8)ng-mouseover 鼠标经过上面即可触发

[html]

<button ng-mouseover="count = count + 1" ng-init="count=0">
Increment (when mouse is over)
</button>
count: {{count}}

(9)ng-mouseout 鼠标点击触发

[html]

<button ng-mouseup="count = count + 1" ng-init="count=0">
Increment (on mouse up)
</button>
count: {{count}}

(10)ng-keydown 键盘点击即可触发

[html]

<input ng-keydown="count = count + 1" ng-init="count=0">
key down count: {{count}}

(11)ng-keyup 键盘点击即可触发

[html]

<p>Typing in the input box below updates the key count</p>
<input ng-keyup="count = count + 1" ng-init="count=0"> key up count: {{count}}
<p>Typing in the input box below updates the keycode</p>
<input ng-keyup="event=$event">
<p>event keyCode: {{ event.keyCode }}</p>
<p>event altKey: {{ event.altKey }}</p>

(12)ng-keypress 键盘点击即可触发

[html]

<input ng-keypress="count = count + 1" ng-init="count=0">
key press count: {{count}}

(13)ng-focus/blur 同ng-click，键盘点击即可触发

(14)ng-submit form表单提交

[html]

<script>
angular.module(‘submitExample‘, [])
.controller(‘ExampleController‘, [‘$scope‘, function($scope) {
$scope.list = [];
$scope.text = ‘hello‘;
$scope.submit = function() {
if ($scope.text) {
$scope.list.push(this.text);
$scope.text = ‘‘;
}
};
}]);
</script>
<form ng-submit="submit()" ng-controller="ExampleController">
Enter text and hit enter:
<input type="text" ng-model="text" name="text" />
<input type="submit" id="submit" value="Submit" />
<pre>list={{list}}</pre>
</form>

(15)ng-selected

[html]

<label>Check me to select: <input type="checkbox" ng-model="selected"></label><br/>
<select aria-label="ngSelected demo">
<option>Hello!</option>
<option id="greet" ng-selected="selected">Greetings!</option>
</select>

(16) ng-change

[html]

<script>
angular.module(‘changeExample‘, [])
.controller(‘ExampleController‘, [‘$scope‘, function($scope) {
$scope.counter = 0;
$scope.change = function() {
$scope.counter++;
};
}]);
</script>
<div ng-controller="ExampleController">
<input type="checkbox" ng-model="confirmed" ng-change="change()" id="ng-change-example1" />
<input type="checkbox" ng-model="confirmed" id="ng-change-example2" />
<label for="ng-change-example2">Confirmed</label><br />
<tt>debug = {{confirmed}}</tt><br/>
<tt>counter = {{counter}}</tt><br/>
</div>

2.AngularJS input相关指令

(1)ng-disabled 禁用属性,用于select，input，button

[html]

<label>Click me to toggle:<input type="checkbox" ng-model="checked"/></label>
<button ng-model="button" ng-disabled="checked">Button</button>

(2)ng-readonly 禁止属性，用于input禁止输入

[html]

<label>Check me to make text readonly: <input type="checkbox" ng-model="checked"></label><br/>
<input type="text" ng-readonly="checked" value="I‘m AngularJS" aria-label="Readonly field" />

(3)ng-checked

[html]

<label>Check me to check both: <input type="checkbox" ng-model="master"></label><br/>
<input id="checkSlave" type="checkbox" ng-checked="master" aria-label="Slave input">

(4)ng-value

[html]

<script>
angular.module(‘valueExample‘, [])
.controller(‘ExampleController‘, [‘$scope‘, function($scope) {
$scope.names = [‘pizza‘, ‘unicorns‘, ‘robots‘];
$scope.my = { favorite: ‘unicorns‘ };
}]);
</script>
<form ng-controller="ExampleController">
<h2>Which is your favorite?</h2>
<label ng-repeat="name in names" for="{{name}}">
{{name}}
<input type="radio"
ng-model="my.favorite"
ng-value="name"
id="{{name}}"
name="favorite">
</label>
<div>You chose {{my.favorite}}</div>
</form>

3.AngularJS 样式指令

(1)ng-class

(2)ng-style

[html]

<input type="button" value="set color" ng-click="myStyle={color:‘red‘}">
<input type="button" value="set background" ng-click="myStyle={‘background-color‘:‘blue‘}">
<input type="button" value="clear" ng-click="myStyle={}">
<br/>
<span ng-style="myStyle">Sample Text</span>
<pre>myStyle={{myStyle}}</pre>

(3)ng-href

[html]

<a id="link-6" ng-href="{{value}}">link</a> (link, change location)

(4)ng-src

4.angularjs DOM操作指令

(1)ng-if

[html]

<label>Click me: <input type="checkbox" ng-model="checked" ng-init="checked=true" /></label><br/>
Show when checked:
<span ng-if="checked" class="animate-if">
This is removed when the checkbox is unchecked.
</span>

(2)ng-show

[html]

Show: <input type="checkbox" ng-model="checked" aria-label="Toggle ngShow"><br />
<div class="check-element animate-show-hide" ng-show="checked">
I show up when your checkbox is checked.
</div>

(3)ng-switch

[html] view plain copy

<!DOCTYPE html>
<html lang="Zh-cn">
<meta charset="utf-8">
<head>
<title></title>
</head>
<script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular.min.js"></script>
<script src="http://cdn.static.runoob.com/libs/angular.js/1.4.6/angular-animate.min.js"></script>
<body>
<div ng-app="myApp">
<div ng-controller="ExampleController">
<select ng-model="selection" ng-options="item for item in items"></select>
<code>selection={{selection}}</code>
<hr/>
<div ng-switch on="selection">
<div ng-switch-when="settings|options" ng-switch-when-separator="|">Settings Div</div>
<div ng-switch-when="home">Home Span</div>
<div ng-switch-default>default</div>
</div>
</div>
</div>
<script type="text/javascript">
var app = angular.module("myApp", [‘ngAnimate‘]);
app.controller(‘ExampleController‘,[‘$scope‘,function($scope){
$scope.items=[‘settings‘,‘home‘,‘options‘,‘other‘];
$scope.selection = $scope.items[0];
}]);
</script>
</body>
</html>

(4)ng-open

[html]

<label>Check me check multiple:<input type="checkbox" ng-model="open"/></label><br/>
<details id="details" ng-open="open">
<summary>Show/Hide me</summary>
</details>

5.AngularJS ngBind/ngBindHtml/ngBindTemplate/ngInclude

(1)ng-bind 显示数据类似于{{}}

[html]

<label>Enter name: <input type="text" ng-model="name"></label><br>
Hello <span ng-bind="name"></span>!

(2)ng-bind-template 解决ng-bind中只能绑定一个的问题

[html]

<label>Salutation: <input type="text" ng-model="salutation"></label><br>
<label>Name: <input type="text" ng-model="name"></label><br>
<pre ng-bind-template="{{salutation}} {{name}}!"></pre>

(3)ng-bind-html 解析html代码

[html]

<div ng-app="myApp">
<div ng-controller="ExampleController">
<p ng-bind-html="myHTML"></p>
</div>
</div>
<script type="text/javascript">
var app = angular.module("myApp", [‘ngSanitize‘]);
app.controller(‘ExampleController‘,[‘$scope‘,function($scope){
$scope.myHtml=‘I am an <code>HTML</code>string with‘+‘<a href="#">links!</a> and other <em>stuff</em>‘;
}]);
</script>