In the controller, there is a function that sets the true value to a variable.
function setShow() {
return this.isShow === 'Foo';
}
The value of this.isShow is set to 'Foo'
Within the template, there is
<div ng-if = "vm.setShow()"> Hi </div>It appears that the HTML loads before the javascript function executes. Handling this scenario has proven to be quite challenging and is a problem that arises frequently.
Here is a suggestion you can consider:
If you are using AngularJS, make sure to inject the $timeout service into your controller.
$timeout(function(){
// add your code here
},100);
This code snippet will execute when your HTML document has finished loading. Place your function inside the $timeout.
Alternatively, in vanilla JavaScript you can use:
setTimeout(function(){
//add your code here
},100);
According to the explanation on ng-if:
The ng-if directive is responsible for removing the HTML element when the expression evaluates to false.
If the condition specified in the if statement results in true, a duplicate of the Element will be inserted into the DOM.
If your function does not return true, it explains why the div is not being displayed. Consider modifying your function to return true.
Update: After reviewing your recent changes, it appears the issue may stem from the function not being within $scope and an unidentified 'vm' object in ng-if that should perhaps be addressed.
It seems like the setShow function is missing from the $scope, causing the ng-if directive to not find it and interpret it as false.
Give this a try:
angular.module("myApp", []).controller("myCtrl", function($scope) {
var isShow = "Foo";
$scope.setShow = function () {
return isShow == "Foo";
}
});<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script>
<div ng-app="myApp" ng-controller="myCtrl">
<div ng-if="setShow()"> Hi </div>
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