How to get the option text value after onchange it in AngularJS - javascript

I have a select drop down,on change of 'Cities' I am getting the value of previous selection not current selection values.For ex: here if I select state and again If I select Cities,the div text comes under state is showing in alert,but I want to show the div text comes under cities.Again I want to display all the value as a message one by one,here I can able to display last value only.Can any one please help me on these 2 issues.Here is the code below.
HTML
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
<select class="change" ng-model="x" ng-change="update()">
<option value="city">Cities</option>
<option value="state">States</option>
<option value="country">Countries</option>
</select>
<div ng-repeat="emp in groups" class="test" ng-attr-id="{{emp[attr]}}"><p>{{emp[attr]}}</p></div>
<div class="error">{{col}}</div>
</div>
</div>
Script
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.groups = [{
title: 'title1',
name: 'name1',
details: 'one'
},
{
title: 'title2',
name: 'name2',
details: 'two'
},
{
title: 'title3',
name: 'name2',
details: 'three'
}
]
$scope.update = function() {
if ($scope.x == 'city') {
$scope.id = 'city';
$scope.attr = 'details';
$('div.test').each(function(i,div){
var listitem = div;
$scope.col = $(div).find("p").text();
alert($scope.col);
});
}
if ($scope.x == 'state') {
$scope.id = 'state';
$scope.attr = 'title';
}
if ($scope.x == 'country') {
$scope.id = 'country';
$scope.attr = 'name';
}
}
});

I tested your code, the basic angularjs syntax looks correct and it works.
What you should think about is to avoid mixing jQuery and angularjs. What jQuery can do - You can do with angularjs, the angularjs way, you just need to learn it.
Here's an working example where I removed your jQuery stuff.
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.groups = [{
title: 'title1',
name: 'name1',
details: 'details1'
},
{
title: 'title2',
name: 'name2',
details: 'details2'
},
{
title: 'title3',
name: 'name3',
details: 'details3'
}
]
$scope.update = function() {
if ($scope.id == 'city') {
$scope.attr = 'details';
}else if ($scope.id == 'state') {
$scope.attr = 'title';
}else if ($scope.id == 'country') {
$scope.attr = 'name';
}
}
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
<select class="change" ng-model="id" ng-change="update()">
<option value="city">Cities</option>
<option value="state">States</option>
<option value="country">Countries</option>
</select>
<div ng-repeat="emp in groups" class="test" ng-attr-id="{{emp[attr]}}"><p>{{emp[attr]}}</p></div>
<div class="error">{{col}}</div>
</div>
</div>

Related

How to modify a particular div of ng repeat based on json value in angularjs

I have a drop down,when I change the drop down option to cities,state..I am populating the values from json.Here my requirement is when I populate the value 'No data' on change of dropdown,that time button should hide for particular value only.Here is the code below.
HTML
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.9/angular.min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
<select class="change" ng-model="x" ng-change="update()">
<option value="city">Cities</option>
<option value="state">States</option>
<option value="country">Countries</option>
</select>
<div ng-repeat="emp in groups" class="test" ng-attr-id="{{emp[attr]}}">
<p>{{emp[attr]}}<button ng-if="emp[attr]!='No data'" type="button">My button</button></p></div>
<div ng-if="emp[attr]=='No data'">No db found</div>
</div>
</div>
script
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.groups = [{
title: 'title1',
name: 'name1',
details: 'No data',
id : 1
},
{
title: 'No data',
name: 'name2',
details: 'two',
id : 2
},
{
title: 'title3',
name: 'name2',
details: 'three',
id : 3
}
]
$scope.update = function() {
if ($scope.x == 'city') {
$scope.id = 'city';
$scope.attr = 'details';
}
if ($scope.x == 'state') {
$scope.id = 'state';
$scope.attr = 'title';
}
if ($scope.x == 'country') {
$scope.id = 'country';
$scope.attr = 'name';
}
}
});
I guess ng-if will be the optimum solution if you are already aware about the condition when to hide data, in your case 'No data'.
In your HTML you can add the condition
var app = angular.module("myApp", []);
app.controller("myCtrl", function($scope) {
$scope.groups = [{
title: 'title1',
name: 'name1',
details: 'No data',
id: 1
},
{
title: 'title2',
name: 'name2',
details: 'two',
id: 2
},
{
title: 'title3',
name: 'name2',
details: 'three',
id: 3
}
]
$scope.changeCss = function(input) {
if (input === 'No data') {
return {
'color': 'red'
}
}
}
$scope.update = function() {
if ($scope.x == 'city') {
$scope.id = 'city';
$scope.attr = 'details';
}
if ($scope.x == 'state') {
$scope.id = 'state';
$scope.attr = 'title';
}
if ($scope.x == 'country') {
$scope.id = 'country';
$scope.attr = 'name';
}
}
});
app.filter('modifydata', function() {
return function(input) {
if (input && input.length > 0) {
if (input === 'No data')
return 'No db found'
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/angular.js/1.7.5/angular.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
<select class="change" ng-model="x" ng-change="update()">
<option value="city">Cities</option>
<option value="state">States</option>
<option value="country">Countries</option>
</select>
<div ng-repeat="emp in groups" class="test" ng-attr-id="{{emp[attr]}}">
<p ng-style="changeCss(emp[attr])">{{emp[attr] | modifydata}}<button ng-if="emp[attr]!='No data'" type="button">My button</button></p>
<!--place here in the scope of ng-repeat-->
<div ng-if="false" class="error">hello</div>
</div>
<!--<div ng-if="false" class="error">hello</div>-->
</div>
</div>

Assign css class using ng-class in angular js

I'm using angularjs and I have data like this :
$scope.users = [{
name: "Pratik"
queue: [{number: "199"},{number: "111"}],
status: "OK"
}]
My view :
.available{
background-color: #00226f;
color: #f8f8f8;
}
<div class="col-xs-12 col-sm-3" ng-repeat="user in users">
<span ng-class="{'available': user.queue[0].number == 111}" class="badges ">111</span>
</div>
My problem is that I want to assign the class "available" if the queue array in users contains the number "111" at any index. In the users array the number:"111" may appear at any index so in the view I can't always use user.queue[1].number == 111 or user.queue[1].number == 111 to assign the class. I want a solution which will check if the queue array contains number:"111" and assign the class of available accordingly.
I tried to do it like this : ng-class="{'available': user.queue[i].number == 111}" but it's not working. How do I do it?
This my current workaround to apply the class:
ng-class="{'available': user.queue[0].number == 111 || user.queue[1].number == 111}"
try below code snippet
can achieve by using lodash js also using _.filter
_.filter(array, { 'number': '111' } )
Ref: https://lodash.com/docs/4.17.11#find
var myApp = angular.module('myApp',[]);
function MyCtrl($scope) {
$scope.findObjectByKey = function(array, key, value) {
for (var i = 0; i < array.length; i++) {
if (array[i][key] === value) {
return array[i];
}
}
return null;
};
$scope.users = [{
name: "Pratik",
queue: [{number: "199"},{number: "666"}],
status: "OK"
},
{
name: "Pratik 2",
queue: [{number: "111"},{number: "555"}],
status: "OK 2"
},
{
name: "Pratik 3",
queue: [{number: "999"},{number: "888"}],
status: "OK 3"
}
];
$scope.searcInArray = function(array){
// var obj = $scope.findObjectByKey(array, 'number', '111');
// using loadsh
var obj = _.filter(array, { 'number': '111' } );
return obj.length > 0;
};
}
.available{
background-color: #00226f;
color: #f8f8f8;
}
<html>
<head>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/lodash.js/4.17.11/lodash.min.js"></script>
</head>
<body>
<div ng-app="myApp" ng-controller="MyCtrl">
<div class="col-xs-12 col-sm-3" ng-repeat="user in users">
<span ng-class="{'available' : searcInArray(user.queue)}" class="badges ">111</span>
</div>
</div>
</body>
</html>
You have to add use ng-repeat to loop all queue and find how has item.number == '111'
<div class="col-xs-12 col-sm-3" ng-repeat="user in users">
<div ng-repeat="item in user.queue">
<span ng-class="{'available': item.number == '111'}" class="badges ">111</span>
</div>
</div>
NOTE!
if you want show only the item.number == '111' you can use ng-hide/show
To check that condition where 111 appears at any index the easy fix could be to call a function that will check that property in the array and return true or false based on the condition. Something like below:
var app = angular.module('myApp', []);
app.controller('MainCtrl', ['$scope', function($scope){
$scope.users = [{
name: "Pratik",
queue: [{
number: "111"
}, {
number: "119"
}],
status: "OK"
},
{
name: "Pratik123",
queue: [{
number: "199"
}, {
number: "185"
}],
status: "OK"
}];
$scope.checkQueue = function(queue){
return queue.find(({number})=>number === '111');
}
}]);
.available {
background-color: #00226f;
color: #f8f8f8;
}
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="MainCtrl">
<div class="col-xs-12 col-sm-3" ng-repeat="user in users">
<span ng-class="{'available': checkQueue(user.queue)}" class="badges ">{{user.name}}</span>
</div>
</div>

Highlight search text in the search results using angularJS filter

I've an input box which is used to filter out the results among the overall results displayed. I've a filter 'startWith' for that.
Now, I need to highlight the search text among the search results displayed in
angularJS.
For e.g., when I type 'o' in the search box, it should highlight 'O' of the Orange displayed.
Could you please help me achieve this?
Here's my code:
var app = angular.module('myApp', []);
app.controller('myCtrl', ['$scope', function($scope) {
$scope.myData = [{
'name': 'Orange'
}, {
'name': 'Banana'
}, {
'name': 'Mango'
}, {
'name': 'Apple'
}, {
'name': 'Pineapple'
}];
$scope.startWith = function(actual, expected) {
var lowerStr = (actual + "").toLowerCase();
return lowerStr.indexOf(expected.toLowerCase()) === 0;
}
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<div id="parentDiv" ng-app="myApp" ng-controller="myCtrl">
<input type="text" ng-model="search.name" class="searchText" id="search_txt" placeholder="Search Data" />
<div id="childDiv">
<p ng-repeat="obj in myData | filter:search:startWith" >{{obj.name}}</p>
</div>
</div>
Just run the output through a function to check against your search and add a class to the highlighted part. Props are due to this blog for the reg ex (I hate regex but they work well)
also google
var app = angular.module('myApp', []);
app.controller('myCtrl', ['$scope', function($scope) {
$scope.myData = [{
'name': 'Orange'
}, {
'name': 'Banana'
}, {
'name': 'Mango'
}, {
'name': 'Apple'
}, {
'name': 'Pineapple'
}];
$scope.startWith = function(actual, expected) {
var lowerStr = (actual + "").toLowerCase();
return lowerStr.indexOf(expected.toLowerCase()) === 0;
}
$scope.highlight = function(text, phrase) {
if (phrase) {
text = text.replace(new RegExp('('+phrase+')', 'gi'),
'<span class="highlighted">$1</span>')
}
return text;
}
}]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<div id="parentDiv" ng-app="myApp" ng-controller="myCtrl">
<input type="text" ng-model="search.name" class="searchText" id="search_txt" placeholder="Search Data" />
<div id="childDiv">
<p ng-repeat="obj in myData | filter:search:startWith" >{{highlight(obj.name)}}</p>
</div>
</div>

how to count the checkbox which was checked using angular?

Here, I used $watch to display the counter value.
But the counter value not increased yet,
To Count,
$scope.$watch('items', function(items){
var selectedItems = 0;
angular.forEach(items, function(item){
selectedItems += item.selected ? 1 : 0;
})
$scope.selectedItems = selectedItems;
}, true);
In UI,
<div class="col-sm-4" ng-repeat="item in items">
<label class="chkbox-holder cbox mbot10" for="List-{{$index}}"><input ng-model="item.Selected" type="checkbox" id="List-{{$index}}"><label for="List-{{$index}}"></label>{{item.name}}</label>
</div>
To display the counter value,
<div>Selected Items Length: {{selectedItems}}</div>
But still the counter is 0;
JSON Value from http service is,
[
{
"id": 1,
"refCode": "",
"name": "pragadees"
},
{
"id": 2,
"refCode": "",
"name": "pragadees"
}......]
Can anyone please help on this.
You've just got a typo error. Your markup is bound to item.Selected while your JavaScript is checking for item.selected. Renaming them properly solves your problem. I'd recommend using lower key inside ot html.
<input ng-model="item.selected" type="checkbox" id="List-{{$index}}">
^-- See here
Demo
first of all, you got a typo in your ng-model, it is item.selected not item.Selected that's maybe why it does not match nothing...
And this is how i'll write it, using basic angular two way data binding, no extra counters, watches, triggers, ....
angular.module('myApp', []);
angular.module('myApp').controller('Ctrl', ['$scope', function($scope) {
$scope.items = [{
name: "Doe"
}, {
name: "Adam"
}, {
name: "Ado"
}, {
name: "Brown"
}, {
name: "Heather"
}, {
name: "Stan"
}];
$scope.itemsSelected = function() {
return $scope.items.filter(function(i) {
return i.selected
}).length;
}
}
]);
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<body ng-app="myApp" ng-controller="Ctrl">
<h2>current active selected options {{ itemsSelected() }}</h2>
<ul>
<div ng-repeat="item in items">
<label for="List-{{$index}}">
<input ng-model="item.selected" type="checkbox" id="List-{{$index}}">
<label for="List-{{$index}}"></label>{{item.name}}</label>
</div>
</ul>
</body>
You can use ng-change instead:
var app = angular.module("app", []);
app.controller("myCtrl", function($scope) {
$scope.items = [
{name: 'A', value: 'a'},
{name: 'B', value: 'b'},
{name: 'C', value: 'c'},
{name: 'D', value: 'd'},
{name: 'E', value: 'e'}
];
$scope.counter = 0;
$scope.change = function(e) {
if(e){
$scope.counter +=1;
}else{
if($scope.counter > 0) $scope.counter -=1;
}
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="app" ng-controller="myCtrl">
<div class="col-sm-4" ng-repeat="item in items">
<label class="chkbox-holder cbox mbot10" for="List-{{$index}}">
<input ng-model="item.Selected" type="checkbox" id="List-{{$index}}"
ng-change="change(item.Selected)">
<label for="List-{{$index}}"></label>{{item.name}}</label>
</div>
Counter: {{counter}}
</div>

Check value of ng-model against string and do function

I have a few functions that I'm having to mix because of scope in a < select :
HTML:
<!-- COUNTRY -->
<select class="account--select" type="text" name="country" ng-model="data.country_id"
ng-options="o.code as o.name for o in content.countries" ng-change="reset();PookycountryChanged()">
<option value="">OTHER*</option>
</select>
Directive:
scope.PookycountryChanged = function() {
scope.$watch('data.country_id', function(){
if ('data.country_id' == "OTHER*") {
console.log('this is the other option selected');
}
});
}
AIM:
To be able to have a function run when the value of the option selected is equal to 'OTHER*'. Right now this is set to a simple console.log. Getting nothing in the console at the momento.
Any pointers?
UPDATE with Reset() function:
scope.reset = function(){
scope.isenabled = (scope.data.country_id == content.config.pca_country);
scope.country = _.findWhere(scope.content.countries, {code : scope.data.country_id});
};
scope.reset();
UPDATE 2:
Generated markup:
<select ng-change="reset()" ng-options="o.code as o.name for o in content.countries" ng-model="data.country_id" name="country" type="text" class="account--select ng-scope ng-valid ng-dirty"><option value="" class="">OTHER*</option><option value="0" selected="selected">United Kingdom</option></select>
Now you have a few problems with your code: in PookycountryChanged you not check value for data.country_id just create yet another watch, also in watch you compare string 'data.country_id' with string "OTHER*" so it always false.
In case where you select item with value="" model set value to null so in watch function you can check it like in snippet below.
angular.module('app', [])
.controller('ctrl', function($scope) {
$scope.reset = function() {
$scope.isenabled = ($scope.data.country_id == $scope.content.config.pca_country);
$scope.country = _.findWhere($scope.content.countries, {
code: $scope.data.country_id
});
};
$scope.content = {
config : {pca_country: 3},
countries: [{
code: 1,
name: 'name1'
}, {
code: 2,
name: 'name2'
}, {
code: 3,
name: 'name3'
}, {
code: 4,
name: 'name4'
}, {
code: 5,
name: 'name5'
}, {
code: 6,
name: 'name6'
}, {
code: 7,
name: 'name7'
}]
};
$scope.$watch('data.country_id', function(newVal) {
if (newVal === null) {
console.log('selected others');
}
})
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.js"></script>
<div ng-app="app" ng-controller="ctrl">
<select class="account--select" type="text" name="country" ng-model="data.country_id" ng-options="o.code as o.name for o in content.countries" ng-change="reset();">
<option value="">OTHER*</option>
</select>
{{country}}
</div>
Or you can avoid even your reset function
angular.module('app', [])
.controller('ctrl', function($scope) {
$scope.content = {
config: {
pca_country: 3
},
countries: [{
code: 1,
name: 'name1'
}, {
code: 2,
name: 'name2'
}, {
code: 3,
name: 'name3'
}, {
code: 4,
name: 'name4'
}, {
code: 5,
name: 'name5'
}, {
code: 6,
name: 'name6'
}, {
code: 7,
name: 'name7'
}]
};
$scope.$watch('data.country_id', function(newVal, oldVal) {
if (newVal !== oldVal && !newVal) {
console.log('selected others');
}
})
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.js"></script>
<div ng-app="app" ng-controller="ctrl">
<select class="account--select" type="text" name="country" ng-model="country" ng-options="o.name for o in content.countries" ng-change="data.country_id=country.code;isenabled=country.country_id==content.config.pca_country">
<option value="">OTHER*</option>
</select>
{{country}}
</div>
Remove PookycountryChanged() from your ng-change, then remove the function wrapping your $watch. There is no point having a watcher inside a function since the watch will always be running anyways.
Also change your option to this:
<option value="OTHER*">OTHER*</option>
Then you need to remove the quotation marks around data.country_id:
scope.$watch('data.country_id', function(){
if (data.country_id === "OTHER*") {
console.log('this is the other option selected');
}
});

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