I am rather stumped as to how I can render Tex equations in my html. I have a vue project with django in the backend as the CMS. I am using Ckeditor as a rich text field which uploads the equation within markdown from an api.
In my vue page I can render all the text with no issues using v-html but my mathematical equations are rendering like this: \(x = {-b \pm \sqrt{b^2-4ac} \over 2a}\)
I have tried many ways to no avail and I can currently get a test equation to render by adding this to index.html
<script>
MathJax = {
tex: {inlineMath: [['$', '$'], ['\\(', '\\)']]}
};
</script>
<script id="MathJax-script" async
src="https://cdn.jsdelivr.net/npm/mathjax#3/es5/tex-chtml.js">.
</script>
and this to my vue page:
<span class='math-tex'>( \(\frac{2}{7},\frac{2}{18}\) )</span>
However I cant seem to get it to work with inline math and text. Here is my vue div:
<template v-if="$store.state.user.isAuthenticated">
<template v-if="activeLesson">
<span v-html="activeLesson.long_description"></span>
</template>
</template>
Whats strange as well is when I add the test equation <span class='math-tex'>( \(\frac{2}{7},\frac{2}{18}\) )</span> in the template v-f section it doesnt render?
What am i doing wrong?
Please halp.
Related
I would like to add Vue to my Django project, but i'm having troubles understanding
some parts of it.
At the actual moment, my project already has a bunch of templates and views. Everything is rendered by the views, the only JS i'm using is for Jquery. The need to add Vue comes to improve my UI. I don't need Vue to be my frontend, i only want to add some Vue components to my templates here and there.
After making some research, i found about the Webpack + Vue approach. It's not the right approach for my project since it should be used for a project where the frontend is entirely built on Vue and is divided from the Django backend, so it is not the right way for me.
At this point, the only way to go would be to add it using the CDN on my django html template:
<script src="https://cdn.jsdelivr.net/npm/vue#2.6.0"></script>
Would this approach be possible?
Yes, this is possible.
Just add the script inside your template:
<script src="https://cdn.jsdelivr.net/npm/vue#2.6.0"></script>
And then you can initialize the Vue components inside other script tags. It is advisable to change interpolation brackets from {{ }} to [[ ]], to avoid conflict with Django templating engine.
<div id="example">
<p>[[ hello ]]</p>
</div>
<script>
new Vue({
el: '#example',
delimiters: ['[[', ']]'],
data: { hello: 'Hello World!' }
})
</script>
I´m trying to use a date picker widget from a model form in the template. I´ve seen several posts but couldn´t get it working correctly.
The one I´m trying now is: Answered question
Form.py
My form code looks like
class FormularioTareas(forms.ModelForm):
class Meta:
model = Tareas
widgets = {'fecha_limite': forms.DateInput(attrs={'class': 'datepicker'})}
fields = ["destinatario", "titulo", "tarea", "resuelto", "fecha_limite"]
Template
In the template I add this script:
/* Include the jquery Ui here */
<script>
$(function() {
$( ".datepicker" ).datepicker({
changeMonth: true,
changeYear: true,
yearRange: "1900:2012",
});
});
</script>
And have this form call in the html
<div style="background: white;">{{ tareas_form.fecha_limite }}</div>
Jquery
I load Jquery as follows and have no problems detected in the browsers console.
<script src="{% static 'js/jquery-3.2.1.min.js' %}"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
What I get
I found out that the picker is working, but the main text box diplays options down when focused so I didn´t see it. The text box is still behaving as a date picker and as a text box. How can I prevent this?
Any clues welcome. Thanks!
I used autocomplete="off" on the form so the usual text input dropdown options don´t show.
I try to get working the electron-vue boilerplate. After setting up the project everything works, but as I create a new .vue file (TopMenu.vue) I get:
vue.common.js?4eb4:2569 [Vue warn]: Unknown custom element: <topmenu> -
did you register the component correctly? For recursive components, make
sure to provide the "name" option. (found in component <landing-page>)
I use the exact syntax as the original .vue files which came with the boilerplate:
LandingPageVue.vue:
<style scoped>
img {
margin-top: -25px;
width: 450px;
}
</style>
<template>
<div>
<!-- <img src="./LandingPageView/assets/logo.png" alt="electron-vue"> -->
<h1>Welcome.</h1>
<topmenu></topmenu>
<current-page></current-page>
<versions></versions>
<links></links>
<div class="container">
</div>
</template>
<script>
import TopMenu from './LandingPageView/TopMenu'
import CurrentPage from './LandingPageView/CurrentPage'
import Links from './LandingPageView/Links'
import Versions from './LandingPageView/Versions'
export default {
components: {
TopMenu,
CurrentPage,
Links,
Versions
},
name: 'landing-page'
}
</script>
TopMenu.vue (my file):
<template>
<p>
TOPMENU
</p>
</template>
By the way, how the hack does <current-page></current-page> work (notice the "-" dash) if bellow it is declared without?
It's not working because you're not exporting anything in your vue file.
Try this in your TopMenu.vue file:
<template>
<p>
TOPMENU
</p>
</template>
<script>
export default {
}
</script>
Also change the html <topmenu></topmenu> to <top-menu></top-menu>
For your second question, HTML is case insensitive so your title case components wouldn't match with html tags. So Vue translates your title case components to a 'dash-case'.
From the documentation itself there's the explanation why:
Note that Vue does not enforce the W3C rules for custom tag names (all-lowercase, must contain a hyphen) though following this convention is considered good practice.
You can read more from the the docs
I have recently decided to do a major upgrade with my javascript libraries and have ran into a perplexing issue with appending Ember.Views. I have been researching this issue for several hours now and have tried many things but nothing has worked.
What I want to do is quite simple: Extend Ember.View, manually create a new instance of this extended view and then append it to a div. In a much earlier version (ember.js 1.5) this was extremely straightforward. Now (ember.js 1.9) attempting the same thing results in an error.
Container was not found when looking up a views template. This is most
likely due to manually instantiating an Ember.View. See:
http://git.io/EKPpnA
Here is a very simple example that demonstrates this: http://jsfiddle.net/81dhm3ta/
html
<body>
<script data-template-name="main" type="text/x-handlebars">
Main
</script>
<div id="main" style="text-align: center;"></div>
</body>
javascript
$(document).ready(function () {
App = Ember.Application.create();
App.MainView = Ember.View.extend({
templateName: 'main',
});
App.view = App.MainView.create();
App.view.appendTo("#main");
});
Can someone show me the simplest way to do this properly?
App.view is neither a D0M element or jQuery object that you can simply append to a div. It is an Ember object of type View.
In the link given by the error, you are clearly told that you can't create views like you did in your snippet. Dynamic views must be instantiated within a parent view or directly through the container (not recommended).
Your life will be much easier if you add views within a template by just using the view helper:
<script type="text/x-handlebars" data-template-name="index">
{{view 'main'}}
</script>
What is the appropriate way to include a Google AdSense banner in an Ember (Handlebars) template?
Say I have a template for a view that looks like this:
<script type="text/x-handlebars" data-template-name="myPageWithBanner">
<div id="mainContent">
Lorem ipsum main content
</div>
<div id="banner">
//Normally I would insert a script tag here, but that is not possible
</div>
</script>
Do I need to do this from code using pre-compiled templates, or is there a way I am not aware of?
I don't have a Google AdSense account, so I can't test this. But there are several major problems here:
You can't include a <script> tag inside a Handlebars template, not even if you use CDATA.
Google AdSense requires the AdSense JavaScript to appear verbatim in your page, or it's a TOS violation.
According to this StackOverflow answer, AdSense on AJAX sites is poorly supported at the moment.
The Google AdSense crawler won't be able to see any content on your page, so I doubt that ad-targeting is going to work. But see below for some things which might help crawlers.
But I'm going to assume, for the sake of simplicity, that you can discuss TOS issues directly with Google, and I'll just try to solve the technical problems. First, based on this StackOverflow answer, here's one possible solution that allows you to serve up Google's script verbatim:
<script type="text/x-handlebars">
<h1>Ember AdSense</h1>
{{outlet}}
<div id="ads"></div>
</script>
<script type="text/x-handlebars" data-template-name="index">
<p>Hello, world!</p>
</script>
<div id="ads-load" style="display: none">
<!--
Apparently this needs to appear verbatim, exactly as Google gave it to
you, or it's a TOS violation.
-->
<script type="text/javascript"><!--
google_ad_client = "ca-pub-XXXXXXXXXX";
/* Test Ad */
google_ad_slot = "XXXXXX";
google_ad_width = 250;
google_ad_height = 250;
//-->
</script>
<script type="text/javascript"
src="http://pagead2.googlesyndication.com/pagead/show_ads.js">
</script>
</div>
Then when our main template loads, we use jQuery to move the ads into our application template:
window.App = Ember.Application.create();
// Explicitly declare the view class for our application view.
App.ApplicationView = Ember.View.extend({
// Called once the view is rendered.
didInsertElement: function () {
$('#ads-load').appendTo("#ads").css("display", "block");
}
});
As for allowing the Google crawler to see you content, Google has official advice for AJAX applications, but I don't know whether that works with the AdSense crawler. Alternatively, if you're using pushState to update your displayed URLs, then you need to make sure that each of those URLs can be rendered by your server when requested by a crawler. (The Discourse forum software does exactly this.)
Please let me know if it gets you any closer.