Develop Reference

checking string value in ng-if statement

I would like to check the value of the property of an object and would like to check the data of string to compare.
<div ng-if="results.dataType === 'textTable'">
This text belongs in a table.
</div>
So far all the divs appear with the text in the body where only two divs should display it.
Is there anything wrong with my ng-if statement and string comparison?

Here is the demo Jsfiddle
Js code
var app = angular.module('myApp', []);
app.controller('ctrl', function($scope) {
$scope.results = {
dataType: 'textTable'
};
$scope.flag = true;
// for testing purpose
$scope.toggle = function() {
if ($scope.flag) {
$scope.results = {
dataType: 'textTable'
};
$scope.flag = !$scope.flag;
} else {
$scope.results = {
dataType: 'textTableNot'
};
$scope.flag = !$scope.flag;
}
}
});
HTML
<div ng-app='myApp'>
<div ng-controller='ctrl'>
<div ng-if='results.dataType === "textTable"'> This text belongs in a table.</div>
{{results.dataType}}
<button ng-click='toggle()'>
Toggle
</button>
</div>
</div>
Hope this will resolve your problem

I realized that in angular 2 the if statement is: *ngIf and not ng-if.

Hope this will resolve your problem.
<div>
<input type="hidden" ng-model="myVar" ng-init="myVar = 'stringformat'">
<div ng-if="myVar =='stringformat'">
<h1>Welcome</h1>
<p>Welcome to my home.</p>
</div>
</div>

click selectively ng-if directive in angular js

HTML :
<div ng-app="myApp" ng-controller="someController as Ctrl">
<div class="clickme" ng-repeat="elems in Ctrl.elem" ng-click="Ctrl.click(elems.title)">
{{elems.title}}
<span>click me</span>
<div id="container">
<test-Input title="elems.title" data="elems.id" ng-if="Ctrl.myId==" >/test-Input>
</div>
</div>
JS :
var Elems = [
{
title : "First",
id : 1
},
{
title : "Second",
id : 2
},
{
title : "Third",
id : 3
}
];
var myApp = angular.module('myApp', []);
myApp.controller('someController', function($scope) {
var self = this;
self.elem = Elems;
self.myId = false;
self.click = function(data){
self.myId = data;
};
});
myApp.directive('testInput',function(){
return {
restrict: 'E',
scope: {
myTitle: '=title',
myId: '=data'
},
template: '<div>{{myTitle}}</div>',
controller: function($scope) {
}
};
});
I'm new to angular js. when I click the "click me" div then I want to make ng-if = true result. then show (not ng-show it will renders every elements) the directive. is there any ways to do it angular way?
Here is a fiddle: http://jsfiddle.net/4L6qbpoy/5/

You can use something like:
<test-Input title="elems.title" data="elems.id" ng-if="elems.isVisible"></test-Input>
and toggle that on click
Check out this jsfiddle

You need to have the ng-if evaluate to true within the ng-repeat. So you need a condition that evaluates the unique value for each object in the array.
ng-if="Ctrl.myId==elems.title"
To understand, each instance of ng-repeat falls under the controller's scope. That means the ng-repeated elements are pushed to the boundaries and are only evaluated within your template. Within those bounds, you have access to a tiny local scope which includes $index, $first, $odd, etc..
You can read more here: https://docs.angularjs.org/api/ng/directive/ngRepeat

AngularJS, how to trigger dom-related javascript on ng-if change

I have a form field (input text) with an ng-if being false at the begining. At some point the ng-if value become true.
When this happen, I want to execute some javascript which manipulate the DOM. To keep it simple, let's say that I need to select the input value and focus the field.
<input type="text" ng-value="foo" ng-if="show" onshow="doSomething()"/>
<button ng-click="toggle()"></button>
The JavaScript
ctrl.foo = "bar";
ctrl.show = false;
ctrl.toggle = function(){
ctrl.show = !ctrl.show;
}
I know that it looks like a "non-angular approach", but here I think the action is not model related.

Since the ng-if directive execute the template each time show become true, you can use ng-init for that. See the following snippet and replace alert('test); by anything you want.
angular.module('test', []).controller('test', function($scope, $element) {
$scope.show = false;
$scope.toggle = function() {
$scope.show = !$scope.show;
};
$scope.init = function() {
alert($element.find('input').val());
};
});
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="test">
<div ng-controller="test">
<input type="text" value="foo" ng-if="show" ng-init="init()" />
<button ng-click="toggle()">Toggle</button>
</div>
</div>

Changing $scope inside controller

I want to change $scope within controller from the wrapping div to the object I'm currently clicking on. My code is as follows:
var blogApp = angular.module('blogApp', ['ngSanitize', 'ngRoute']);
blogApp.controller('blogPostsCtrl', function($scope, $http) {
$http.get('http://jsonplaceholder.typicode.com/posts').success(function(data) {
$scope.posts = data;
$scope.postsLoaded = 'article--loaded';
});
$scope.getPost = function(postID) {
var currentPost = document.getElementById('post-'+postID);
$scope.postsLoaded = 'article--loaded';
$http.get('http://jsonplaceholder.typicode.com/posts/'+postID).success(function(data) {
$scope.body = data.body;
currentPost.insertAdjacentHTML('beforeend', '<div class="body body--hidden" id="body-'+postID+'">'+$scope.body+'</div>');
var currentBody = document.getElementById('body-'+postID);
setTimeout(function() { currentBody.className = currentBody.className + ' body--visible'; }, 1000);
currentPost.classname = 'article one-half desk-one-whole';
});
};
});
html:
<div class="site-wrapper">
<div class="grid-wrapper" ng-controller="blogPostsCtrl">
<article ng-repeat="post in posts" ng-class="postsLoaded" class="article one-half desk-one-whole" id="post-{{post.id}}" ng-click="getPost(post.id)">
<header><h2>{{post.title}}</h2></header>
</article>
</div>
</div>
As you can see, I use function getPost inside controller and there I'm using $scope, but it's (as it should be) set for, like I said, global wrapper. How can I solve this? Please note I'm new to Angular, so I don't know if it's the valid way ;-)

I agree with #Matthew Green. Your question a bit confused. But as far as I can see, you should use directives.
Create a directive and assign to it own $scope.
Hope that will help you.

Get the value of the clicked element on angularjs

I started working with angular about 2 days ago. I'm still wrapping my head around how to do many things. Right now, I am trying to have a tooltip appear with the information pertaining the clicked "tag". I defined a "tag" as a <span> element with a ng-toolkitlike so:
<div id="list-of-words" ng-controller="inlineEditorController" ng-click="hideTooltip()">
<!-- This is the tooltip. It is shown only when the showtooltip variable is truthful -->
<div id="tooltip" class="tooltip" ng-click="$event.stopPropagation()" ng-show="showtooltip">
<input type="text" ng-model="value" />
</div>
<div ng-repeat="w in words">
<span class="tag" ng-click="toggleTooltip($event)">{{w.content}}</span>
</div>
</div>
my controller is as such:
var app = angular.module('myApp', []);
app.controller('inlineEditorController', ['$scope', function($scope){
$scope.inlineEditor = function(){
$scope.showtooltip = false;
$scope.value = 'Edit me.';
$scope.hideTooltip = function(){
$scope.showtooltip = false;
}
$scope.toggleTooltip = function(e){
e.stopPropagation();
$scope.showtooltip = !$scope.showtooltip;
}
};
})]);
what I'm attempting to do is to change the 'Edit me.' to display the content from {{w.content}} but I have no idea how to do this. Everything I've tried so far has failed.

To get item content you can use:
<span class="tag" ng-click="toggleTooltip($event,w.content)">{{w.content}}</span>
So, controller should be:
$scope.toggleTooltip = function(e,content){
e.stopPropagation();
$scope.showtooltip = !$scope.showtooltip;
$scope.value = content;
}

You can use $event.currentTarget to get the element. i.e. e.currentTarget in your controller.