style and content fixes
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2 changed files with 13 additions and 11 deletions
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@ -26,8 +26,6 @@ The [Web Workers API](https://developer.mozilla.org/en-US/docs/Web/API/Web_Worke
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Web Workers are now supported in [all major browsers](https://caniuse.com/webworkers) except Opera Mini, which is mostly used on feature phones with limited processing power.
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> Hint: check [here](https://caniuse.com/webworkers) if your browser supports Web Workers.
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## How to Add a Web Worker in an Angular Component
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Adding a web worker in Angular is surprisingly easy -- just run one [Angular CLI](https://angular.io/cli) command:
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@ -53,7 +51,9 @@ This will generate an `app.worker.ts` file beside `app.component.ts`
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In this next section let's create a basic demo angular application that sorts a list of super hero names -- just to make the example familiar if you followed [Angular's tour of heroes tutorial](https://angular.io/tutorial/tour-of-heroes).
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> Hint: this emoji 👨🏻💻 means you are going to write some code!
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All the code for the demo application we built in this blog can be found on [this Git repository](https://github.com/ayoayco/ng-web-worker-demo).
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> This emoji 👨🏻💻 means you are going to write some code!
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First, let's create a new app `web-worker-demo` with the defaults (i.e., no routing and using CSS for styling).
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@ -111,20 +111,21 @@ export class AppComponent {
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{% raw %}
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<h1>{{ title }}</h1>
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<button>Sort by ID</button>
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<button>Sort by Name</button>
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<ul class="hero-list">
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<li *ngFor="let hero of heroes">
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<span class="badge">{{ hero.id }}</span>
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<span class="name">{{ hero.name }}</span>
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</li>
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</ul>
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<button>Sort by ID</button>
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<button>Sort by Name</button>
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{% endraw %}
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```
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👨🏻💻 Let's now make it look a bit fancy with by putting the following in the App component stylesheet `app.component.css`:
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👨🏻💻 Let's make it look a bit fancy with by putting the following in the App component CSS `app.component.css`:
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```css
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h1 {
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@ -192,9 +193,9 @@ If your browser is now showing a blank white page, unfortunately, this is becaus
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Don't panic. You just have to restart (i.e., stop and start) your development server.
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> Hint: Most operating system terminals allow this by pressing [CTRL]+'C' and running `ng serve` again.
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> Most operating system terminals allow this by pressing [CTRL]+'C' and running `ng serve` again.
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👨🏻💻 Now open `app.component.ts`, create a `sortHeroes` method that accepts a `flag` string as argument in the `AppComponent` class.
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👨🏻💻 Open `app.component.ts`, create a `sortHeroes` method that accepts a `flag` string as argument in the `AppComponent` class.
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👨🏻💻 Next, move all the generated code for using the web worker in it, and you should have this:
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@ -269,6 +270,8 @@ Your `sortHeroes` method should now be:
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This sends a message to our `worker`, letting it know that we want to sort the `heroes` list using the `flag` property.
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After the `worker` instance is done processing, it will then send a message back to its creator and this will trigger the `onmessage` callback where we assign the processed data back to our `heroes` list.
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👨🏻💻 Now let's program our `worker` to do the sorting. Open `app.worker.ts` and replace its contents with the following:
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```ts
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@ -455,7 +455,7 @@ table.image caption {
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padding-top: 20px;
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font-weight: bold;
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}
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p:not(blockquote p):first-of-type::first-letter {
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p:not(blockquote *):first-of-type::first-letter {
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font-weight: 900;
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font-size: 75px;
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line-height: 60px;
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@ -477,7 +477,6 @@ table.image caption {
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p,
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ul li,
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ol li,
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blockquote p:first-of-type::first-letter,
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li p:first-of-type::first-letter {
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--x-height-multiplier: 0.375;
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--baseline-multiplier: 0.17;
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