AngularJS - Executing code after the entire application has finished loading

Being new to AngularJs (1.6), I am just starting out and may not have all the right questions yet.

I have recently begun working on a project built with AngularJS 1.6.

My current task involves running a script on specific routes. For now, let's consider the following simple script:

alert('Hello World');

After extensive research, I discovered that I need to use $state to access $state.current.name and then utilize an if or switch statement in my code to run the script.

The issue I encountered with this approach is that when I try to access $state.current.name during app loading, it returns an empty string.

To verify that $state.current.name eventually returns a value, I implemented the following:

setTimeout(
    () => console.log($state.current.name),
    3000
);

This confirmed that the required value is indeed available after a short delay.

Despite trying lifecycle component methods, the run() method of modules, and resolvers in routes, none of these solutions worked for me.

In all attempts, $state.current.name remained empty, except when using setTimeout.

As a temporary fix, I resorted to:

var interval = setInterval(
    () => {
        if ($state.current.name !== 0) {
            clearInterval(interval);
            alert('Hello World');
        }
    },
    250
);

Therefore, my main question is whether there is a better solution for accessing the route name.

Edit #1

I also tried the following code:

// ...

require('angular')
    .module(config.appName, moduleCollection)
    .run(
        $state => console.log($state.current.name)
    );

Unfortunately, I am still getting an empty string :(. Any alternatives?

Answer №1

If you want to monitor state changes using uiRouter stateChange events:

You can set up a condition to check the state name like this:

if(toState.name == 'something')
{
  alert(toState);
  alert(fromState);
}

For successful state changes:

You'll need to implement these in the run function

.run(['$state', '$rootScope', function($state, $rootScope) {
    $rootScope.$on('$stateChangeSuccess', function(e, toState, toParams, 
  fromState, fromParams) {
        if(toState.name == 'something')
        {
          alert(toState);
          alert(fromState);
        }
    }); 

}])

When a state change is initiated:

$rootScope.$on('$stateChangeStart', function(e, toState, toParams, fromState, fromParams) {
    alert(toState);
    alert(fromState);
}); 

Check out the Documentation here

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