131. Navigating with Router Links

Jul 15, 2026 05:28 · 5:18 · English · Whisper Turbo · 1 Дисплей

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In the last lecture,

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we made our routing work.

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We added routes and we gave Angular a place to load our currently active component.

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But one issue we have is right now we can only navigate around

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by manually typing it here in the address bar.

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Not super convenient.

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And whilst it is important to be able to load a route directly from

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the address bar,

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it would also be nice to have some working links here in our navigation to have

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these tabs work.

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So let's add some links to our application.

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And if we go to our app component,

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we see here's our navigation.

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The first thing you might think about is,

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hey, we can or we already have this ref attribute here to be precise.

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So here we could have ref,

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well, just slash to load our root route.

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Here we could have slash servers.

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And here we could have slash users.

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And if we now save this,

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we added all the routes,

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the paths we set up in our routes configuration to our navigation

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here.

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And hence,

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if this reloads and we click the tabs,

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hey, this is indeed working.

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Now we are correctly loading the route you want to load.

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Okay, just...

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Tab is not updated,

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but I will come back to this later.

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But the reloading is working.

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And that's the issue.

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It's reloading the app.

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Watch this reload icon here.

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Do you see this?

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We refresh the app with every link we click.

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And that's the natural behavior because with every link we click,

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a new request gets sent to the server and it returns us a new page.

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And since this page is still our Angular app with the routes registered on

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it, it is able to give us the correct route.

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So the same thing happens as if we entered this manually here.

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That however is not the best behavior because it means it restarts

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our app on every navigation.

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That of course means our whole application state will be lost and it

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might not really be the behavior we want to offer to the user.

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So this is not how you should implement navigation.

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How should you implement it then?

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There is a special directive Angular gives us.

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Let's get rid of all these ref attributes here.

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So this is not how we will navigate around.

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Instead,

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let's use this special directive.

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It's called router link.

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Now router link like this simply is able

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to parse a string where we could pass just slash.

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So just this string slash to router link here.

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Now this will tell Angular that this element

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on which router link is placed here,

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this anchor tag here,

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will serve as a link in the end,

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but it will handle a click differently as you will see in a second.

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Let's now also add this to the service link.

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So router link equals slash servers.

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And I will come back to how you may write the path here in

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the next lecture.

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Another way of using router link is with property

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binding.

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So you can enclose it in square brackets.

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And now,

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of course, you can't just pass slash users here because this would now search

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for a property with that name,

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which would even be an invalid name in JavaScript.

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So now you have to pass a string here with single quotation marks

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or better an array,

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which gives you a more fine -grained control over route the link.

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And I will come back to this later when this is especially useful.

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Here in this array,

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you now specify all these segments of your path as elements

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in this array.

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So the first segment in this case is only a string

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slash users.

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And if you had slash users slash something,

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you would have a second element here,

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which is then just something without a slash.

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The leading slash here is only needed to make this an absolute path,

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and I will come back to this in the next lecture.

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For now,

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I will get rid of this.

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Now, this array notation is not super convenient,

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but soon you will see when it really gives you an advantage or when you need this notation.

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It allows you to construct more complex paths very easily.

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So with this,

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we set up our three links using router link,

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either by passing a string or this array,

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which allows us to define our individual path elements.

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With that,

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if we save this and have a look at our application,

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Now you see it still reloads or it still gives us the

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components, but it doesn't reload the page.

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If you watch this reload icon,

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nothing is happening there.

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Because the router link catches the click on the element,

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prevents the default,

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which would be to send a request,

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and instead analyzes what we passed here to the router

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link directive,

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so this path or this array of path elements,

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and then parses it and checks if it finds a fitting

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route in our configuration,

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which it of course does because we defined all the paths we're using here.

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And this is how we can navigate around with the router link,

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and this actually is how we should navigate around,

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because it gives us the better user experience,

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it doesn't restart our app,

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therefore it keeps the app state,

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and it's much faster than reloading the page all the time.

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You can,

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of course, still type something here manually,

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so that will still work,

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but if you're inside of the app,

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using router link is much better.

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