What I am looking for is more of a toggle i suppose. basically I have this:
<i class="checkbox pull-left" ng-click="changePrice()"></i>
I have a variable in my controller like so:
$scope.basePrice = 10;
What i am looking to do, is on checking the box, switch the variable to a different number. Which I can do. My problem lies when i uncheck the box, and the variable doesnt switch back. I have tried an if/else if statement, ng-change, ng-click, i was thinking switch might work, but at this point, im clueless. Any help would be appreciated.
requested controller example:
app.controller('examplectrl', '[$scope', function($scope){
$scope.basePrice = 10;
$scope.changePrice = function(){
if($('#changePrice.checked')){
console.log("checked");
}else{
console.log("not checked.")
}
};
}]);
I added a second variable that keep the toggle value as a boolean
The price is updated to 25 but you can add your own code there
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.basePrice = 10;
$scope.priceToggle = false;
$scope.changePrice = function() {
$scope.priceToggle ? $scope.basePrice = 10: $scope.basePrice = 25;
$scope.priceToggle = !$scope.priceToggle;
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="myApp" ng-controller="myCtrl">
<button class="checkbox pull-left" ng-click="changePrice()">Change price</button>
<p ng-bind="basePrice"></p>
</body>
You can do it without using a controller function:
angular.module('app', []);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="app">
<i ng-init="basePrice = 10" class="checkbox pull-left" ng-click="basePrice = basePrice == 10 ? 25 : 10">PRICE</i>
{{basePrice}}
</body>
Related
I have to hide a div on click .
<div ng-if="hideDiv">
<div>text text text text</div>
<a ng-click="hideMe(false)">Click Me To Hide</a>
</div>
Controller
this.hideMe = function(action){
$scope.hideDiv = action;
}
tested results are
console.log($scope.hideDiv) // Is false
{{hideDiv}} <!--Is false-->
But still ng-if doesn't hide div ?
Please, test the snippet below. I'm pretty sure your problem is due to some angularJS configuration failure
(function(){
angular.module("app", []).controller("testController", function($scope)
{
$scope.showDiv = true;
$scope.hideMe = function(IsVisible)
{
$scope.showDiv = IsVisible;
}
});
})();
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="testController">
<div ng-if="showDiv">
<a ng-click="hideMe(false)">Click Me To Hide</a>
</div>
</div>
Recently I am learning Angularjs, my code seems not work as expected:
this is my div:
<div ng-app="myApp">
<div ng-controller="myController">
<input type="text" ng-model="data.name" value=""/>
{{data.count}}
</div>
</div>
my controller is:
<script>
var app = angular.module('myApp',[]);
app.controller('myController', function($scope) {
$scope.data = {
name:"tom",
count = 0
}
$scope.$watch('data', function(oldValue,newValue) {
++$scope.data.count;
},true);
})
</script>
what I expect is when I type something in the <input> box, the {{data.count}} will increase by 1 each time. However the code is initially 11 and each time I make changes in the input field, the count is increased by 11, can someone help me find where have I done wrong? Thanks a lot in advance.
Why this happen?
Watcher calls multiple times because you created watcher for full object data. Flag true will create sub-watcher for every value in object.
Its a proper behavior. I believe you want something like:
$scope.$watch('data', function(oldValue,newValue) {
if(oldValue.name != newValue.name){
++$scope.data.count;
}
},true);
Demo Fiddle
The second solution is to watch on name only:
$scope.$watch(function(){
return $scope.data.name
}, function(oldValue,newValue) {
++$scope.data.count;
});
Here is a another way to do it. Use the ng-keydown directive and update the count only when a key is pressed inside the input element.
var app = angular.module('myApp', []);
app.controller('MyController', function MyController($scope) {
$scope.data = {
name: "tom",
count: 0
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-controller='MyController' ng-app='myApp'>
<input type="text" ng-model="data.name" value="" ng-keydown="data.count = data.count+1" /> {{data.count}}
</div>
I am trying that on a button click, a div and and input tag are created and the input tag contain ng-model and the div has binding with that input.
Kindly suggest some solution.
You can create the div and input beforehand and and do not show it by using ng-if="myVar". On click make the ng-if="true".
<button ng-click="myVar = true">
In controller : $scope.myVar = false;
$scope.addInputBox = function(){
//#myForm id of your form or container boxenter code here
$('#myForm').append('<div><input type="text" name="myfieldname" value="myvalue" ng-model="model-name" /></div>');
}
Here is another solution, in which there's no need to create a div and an input explicitly. Loop through an array of elements with ng-repeat. The advantage is that you will have all the values of the inputs in that array.
angular.module('app', [])
.controller('AppController', AppController);
AppController.$inject = ['$scope'];
function AppController($scope) {
$scope.values = [];
$scope.add = function() {
$scope.values.push('');
};
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="AppController">
<button ng-click="add()">Click</button>
<div ng-repeat="value in values track by $index">
<input type="text" ng-model="values[$index]"/>
<div>{{values[$index]}}</div>
</div>
<pre>{{values}}</pre>
</div>
UPDATE. And if you want only one input, it's even simpler, using ng-show.
angular.module('app', []);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app">
<button ng-click="show = true">Click</button>
<div ng-show="show">
<input type="text" ng-model="value"/>
<div>{{value}}</div>
</div>
</div>
You should use $compile service to link scope and your template together:
angular.module('myApp', [])
.controller('MyCtrl', ['$scope', '$compile', '$document' , function MyCtrl($scope, $compile, $document) {
var ctrl = this;
var inputTemplate = '<div><span ng-bind="$ctrl.testModel"></span>--<span>{{$ctrl.testModel}}</span><input type="text" name="testModel"/></div>';
ctrl.addControllDynamically = addControllDynamically;
var id = 0;
function addControllDynamically() {
var name = "testModel_" + id;
var cloned = angular.element(inputTemplate.replace(/testModel/g, name)).clone();
cloned.find('input').attr("ng-model", "$ctrl." + name); //add ng-model attribute
$document.find('[ng-app]').append($compile(cloned)($scope)); //compile and append
id++;
}
return ctrl;
}]);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//code.angularjs.org/1.6.2/angular.js"></script>
<div ng-app="myApp">
<div ng-controller="MyCtrl as $ctrl">
<input type="button" value="Add control dynamically" ng-click="$ctrl.addControllDynamically()"/>
</div>
</div>
UPDATE: to add a new compiled template each time the button is clicked, we need to make a clone of the element.
UPDATE 2: The example above represents a dirty-way of manipulating the DOM from controller, which should be avoided. A better (angular-)way to solve the problem - is to create a directive with custom template and use it together with ng-repeat like this:
angular.module('myApp', [])
.controller('MyCtrl', ['$scope', function MyCtrl($scope) {
var ctrl = this;
ctrl.controls = [];
ctrl.addControllDynamically = addControllDynamically;
ctrl.removeControl = removeControl;
function addControllDynamically() {
//adding control to controls array
ctrl.controls.push({ type: 'text' });
}
function removeControl(i) {
//removing controls from array
ctrl.controls.splice(i, 1);
}
return ctrl;
}])
.directive('controlTemplate', [function () {
var controlTemplate = {
restrict: 'E',
scope: {
type: '<',
ngModel: '='
},
template: "<div>" +
"<div><span ng-bind='ngModel'></span><input type='type' ng-model='ngModel'/></div>" +
"</div>"
}
return controlTemplate;
}]);
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="//code.angularjs.org/1.6.2/angular.js"></script>
<div ng-app="myApp">
<div ng-controller="MyCtrl as $ctrl">
<input type="button" value="Add control dynamically" ng-click="$ctrl.addControllDynamically()"/>
<div ng-repeat="control in $ctrl.controls">
<control-template type="control.type" ng-model="control.value"></control-template>
</div>
</div>
</div>
I have HTML code with inline element:
<span class="title" ng-click="update()">Rock</span>
How to replace this element on input element after click for edit?
And then after push enter on input return back span element?
I tried with directives ng-hide(), ng-show(). But I wonder
You can use either
<span class="title" ng-hide="isEdited" ng-click="update()">Rock</span>
or
<span class="title" ng-show="!isEdited" ng-click="update()">Rock</span>
or even
<span class="title" ng-if="!isEdited" ng-click="update()">Rock</span>
In any case you will want to reference something that can be truthy. For example in your controller you would have something like this in your function
/*the init function just makes sure that everything is setup
and nothing caries over from any local storage or anything
else you may be using*/
init();
init function(){
$scope.isEdited = false;
}
$scope.update = function(){
$scope.isEdited = true;
}
What you need to do is set a variable that contains the state;
<html>
<body ng-app="app">
<div ng-controller="mainController as $ctrl">
<span ng-if="!$ctrl.isInEditMode" class="title" ng-click="$ctrl.update()" ng-bind="$ctrl.spanText"></span>
<div ng-if="$ctrl.isInEditMode">
<input type="text" placeholder="Value for rock" ng-model="$ctrl.spanText" />
<button ng-click="$ctrl.update()">Done</button>
</div>
</body>
</html>
angular.module('app', [])
.controller('mainController', function($scope) {
this.isInEditMode = false;
this.spanText = 'Rock';
this.update = (function() {
this.isInEditMode = !this.isInEditMode;
}).bind(this);
});
I have prepared a Codepen that shows an possible solution: http://codepen.io/stefferd/pen/QdQrrv
$scope.man="A"; //default text
<div ng-app="myApp" ng-controller="myCtrl">
<p>person clicked {{man}}</p>
<button ng-click="man('b')">B</button><br>
<button ng-click="man('c')">C</button>
</div>
var app=angular.module("myApp",[]);
app.controller("myCtrl",function($scope){
$scope.man="A";
$scope.man=function(value)
{
$scope.man=value;
}
});
i am new to angularjs i wanted to change text by arguments but text is not changing and the default text A is also not getting displayed can some one help me out with this
check this link
https://jsfiddle.net/nikhila/31gz56tn/
Your $scope variable and function are same. Change your function like this,
HTML:
<div ng-app="myApp" ng-controller="myCtrl">
<p>person clicked {{man}}</p>
<button ng-click="change('b')">B</button><br>
<button ng-click="change('c')">C</button>
</div>
Controller:
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.man = "A";
$scope.change = function(value) {
$scope.man = value;
}
});
DEMO