<?xml version="1.0" encoding="utf-8" standalone="yes"?><rss version="2.0" xmlns:atom="http://www.w3.org/2005/Atom"><channel><title>JavaScript | DD</title><link>https://zijiand.github.io/tags/javascript/</link><atom:link href="https://zijiand.github.io/tags/javascript/index.xml" rel="self" type="application/rss+xml"/><description>JavaScript</description><generator>Hugo Blox Builder (https://hugoblox.com)</generator><language>en-us</language><lastBuildDate>Tue, 24 Oct 2023 00:00:00 +0000</lastBuildDate><image><url>https://zijiand.github.io/media/icon_hu3a0783635f2a403a6cac6e9d98fa0b09_56508_512x512_fill_lanczos_center_3.png</url><title>JavaScript</title><link>https://zijiand.github.io/tags/javascript/</link></image><item><title>Learn JavaScript</title><link>https://zijiand.github.io/service/js/</link><pubDate>Tue, 24 Oct 2023 00:00:00 +0000</pubDate><guid>https://zijiand.github.io/service/js/</guid><description>&lt;!--
[Hugo Blox Builder](https://hugoblox.com) is designed to give technical content creators a seamless experience. You can focus on the content and the Hugo Blox Builder which this template is built upon handles the rest.
**Embed videos, podcasts, code, LaTeX math, and even test students!**
On this page, you'll find some examples of the types of technical content that can be rendered with Hugo Blox.
## Video
Teach your course by sharing videos with your students. Choose from one of the following approaches:
&lt;div style="position: relative; padding-bottom: 56.25%; height: 0; overflow: hidden;">
&lt;iframe allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" allowfullscreen="allowfullscreen" loading="eager" referrerpolicy="strict-origin-when-cross-origin" src="https://www.youtube.com/embed/D2vj0WcvH5c?autoplay=0&amp;controls=1&amp;end=0&amp;loop=0&amp;mute=0&amp;start=0" style="position: absolute; top: 0; left: 0; width: 100%; height: 100%; border:0;" title="YouTube video"
>&lt;/iframe>
&lt;/div>
**Youtube**:
{{&lt; youtube w7Ft2ymGmfc >}}
**Bilibili**:
{{&lt; bilibili id="BV1WV4y1r7DF" >}}
**Video file**
Videos may be added to a page by either placing them in your `assets/media/` media library or in your [page's folder](https://gohugo.io/content-management/page-bundles/), and then embedding them with the _video_ shortcode:
{{&lt; video src="my_video.mp4" controls="yes" >}}
## Podcast
You can add a podcast or music to a page by placing the MP3 file in the page's folder or the media library folder and then embedding the audio on your page with the _audio_ shortcode:
{{&lt; audio src="ambient-piano.mp3" >}}
Try it out:
&lt;audio controls >
&lt;source src="https://zijiand.github.io/service/js/ambient-piano.mp3" type="audio/mpeg">
&lt;/audio>
## Test students
Provide a simple yet fun self-assessment by revealing the solutions to challenges with the `spoiler` shortcode:
```markdown
{{&lt; spoiler text="👉 Click to view the solution" >}}
You found me!
{{&lt; /spoiler >}}
```
renders as
&lt;details class="spoiler " id="spoiler-2">
&lt;summary class="cursor-pointer">👉 Click to view the solution&lt;/summary>
&lt;div class="rounded-lg bg-neutral-50 dark:bg-neutral-800 p-2">
You found me 🎉
&lt;/div>
&lt;/details>
## Math
Hugo Blox Builder supports a Markdown extension for $\LaTeX$ math. You can enable this feature by toggling the `math` option in your `config/_default/params.yaml` file.
To render _inline_ or _block_ math, wrap your LaTeX math with `{{&lt; math >}}$...${{&lt; /math >}}` or `{{&lt; math >}}$$...$${{&lt; /math >}}`, respectively.
&lt;div class="flex px-4 py-3 mb-6 rounded-md bg-primary-100 dark:bg-primary-900">
&lt;span class="pr-3 pt-1 text-primary-600 dark:text-primary-300">
&lt;svg height="24" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24">&lt;path fill="none" stroke="currentColor" stroke-linecap="round" stroke-linejoin="round" stroke-width="1.5" d="m11.25 11.25l.041-.02a.75.75 0 0 1 1.063.852l-.708 2.836a.75.75 0 0 0 1.063.853l.041-.021M21 12a9 9 0 1 1-18 0a9 9 0 0 1 18 0m-9-3.75h.008v.008H12z"/>&lt;/svg>
&lt;/span>
&lt;span class="dark:text-neutral-300">We wrap the LaTeX math in the Hugo Blox &lt;em>math&lt;/em> shortcode to prevent Hugo rendering our math as Markdown.&lt;/span>
&lt;/div>
Example **math block**:
```latex
{{&lt; math >}}
$$
\gamma_{n} = \frac{ \left | \left (\mathbf x_{n} - \mathbf x_{n-1} \right )^T \left [\nabla F (\mathbf x_{n}) - \nabla F (\mathbf x_{n-1}) \right ] \right |}{\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2}
$$
{{&lt; /math >}}
```
renders as
$$\gamma_{n} = \frac{ \left | \left (\mathbf x_{n} - \mathbf x_{n-1} \right )^T \left [\nabla F (\mathbf x_{n}) - \nabla F (\mathbf x_{n-1}) \right ] \right |}{\left \|\nabla F(\mathbf{x}_{n}) - \nabla F(\mathbf{x}_{n-1}) \right \|^2}$$
Example **inline math** `{{&lt; math >}}$\nabla F(\mathbf{x}_{n})${{&lt; /math >}}` renders as $\nabla F(\mathbf{x}_{n})$
.
Example **multi-line math** using the math linebreak (`\\`):
```latex
{{&lt; math >}}
$$f(k;p_{0}^{*}) = \begin{cases}p_{0}^{*} &amp; \text{if }k=1, \\
1-p_{0}^{*} &amp; \text{if }k=0.\end{cases}$$
{{&lt; /math >}}
```
renders as
$$
f(k;p_{0}^{*}) = \begin{cases}p_{0}^{*} &amp; \text{if }k=1, \\
1-p_{0}^{*} &amp; \text{if }k=0.\end{cases}
$$
## Code
Hugo Blox Builder utilises Hugo's Markdown extension for highlighting code syntax. The code theme can be selected in the `config/_default/params.yaml` file.
```python
import pandas as pd
data = pd.read_csv("data.csv")
data.head()
```
renders as
```python
import pandas as pd
data = pd.read_csv("data.csv")
data.head()
```
## Inline Images
```go
{{&lt; icon name="python" >}} Python
```
renders as
&lt;span class="inline-block pr-1">
&lt;svg style="height: 1em; transform: translateY(0.1em);" xmlns="http://www.w3.org/2000/svg" height="1em" viewBox="0 0 448 512" fill="currentColor">&lt;path d="M439.8 200.5c-7.7-30.9-22.3-54.2-53.4-54.2h-40.1v47.4c0 36.8-31.2 67.8-66.8 67.8H172.7c-29.2 0-53.4 25-53.4 54.3v101.8c0 29 25.2 46 53.4 54.3 33.8 9.9 66.3 11.7 106.8 0 26.9-7.8 53.4-23.5 53.4-54.3v-40.7H226.2v-13.6h160.2c31.1 0 42.6-21.7 53.4-54.2 11.2-33.5 10.7-65.7 0-108.6zM286.2 404c11.1 0 20.1 9.1 20.1 20.3 0 11.3-9 20.4-20.1 20.4-11 0-20.1-9.2-20.1-20.4.1-11.3 9.1-20.3 20.1-20.3zM167.8 248.1h106.8c29.7 0 53.4-24.5 53.4-54.3V91.9c0-29-24.4-50.7-53.4-55.6-35.8-5.9-74.7-5.6-106.8.1-45.2 8-53.4 24.7-53.4 55.6v40.7h106.9v13.6h-147c-31.1 0-58.3 18.7-66.8 54.2-9.8 40.7-10.2 66.1 0 108.6 7.6 31.6 25.7 54.2 56.8 54.2H101v-48.8c0-35.3 30.5-66.4 66.8-66.4zm-6.7-142.6c-11.1 0-20.1-9.1-20.1-20.3.1-11.3 9-20.4 20.1-20.4 11 0 20.1 9.2 20.1 20.4s-9 20.3-20.1 20.3z"/>&lt;/svg>
&lt;/span> Python
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