I am building a test engine where the backend code is ready however i am getting stuck with the frontend part.
In the frontend part made using Angular 2 (project setup using angular-cli) I got stuck while rendering the math equations. I am using mathjax and please check what part i am doing wrong.
Just to clarify, I am able to render the static math equations using typescript however when I take the html string from the backend that is through dynamic loading, it doesn't load properly.
Code:
index.html
Included following two scripts within head tag.
MathJax.Hub.Config({
tex2jax: {
inlineMath: [['$','$'], ['\\(','\\)']],
processEscapes: true
}
});
cdn.mathjax.org/mathjax/latest/MathJax.js?config=TeX-AMS-
MML_HTMLorMML
math equation latex
\\(2x^2+9y^2=z^3\\)
exam.component.ts
If I use a string like this:
this.sample = "math equation latex";
and render this in the exam.component.html as {{sample}}, then it works fine. However when I use a http service and get the response, in that case the resulting string it not rendered properly.
Also I read the internet where I found a script to use for dynamic loading involving "typeset", but that doesn't work too.
Please point out what I am doing wrong. Thanks!
Related
I have a ASP.NET Core application which renders tables on the serverside, some are quite complex.
I used to use sorttable: Make all your tables sortable for make the tables sortable; now as I have included vue.js (2.0, without npm / webpack), the jquery plugin obviously does no longer work properly.
Now, before i transition fully over to 100% clientside table rendering - which I want to avoid for now, if its possible, cause its complex - is there something similar to add sorting to a rendered html with vue or is that concept that old and no longer viable in vue.js and other modern frameworks?
So, questions are:
How to make sorttable work in vue.js are (without npm / webpack)
Or how to add something like that to a already server rendered html with vue?
Looking forward and regards, Peter
Okay, got it. That was a journey :-)
Sorttable script: https://www.kryogenix.org/code/browser/sorttable/
The script:
Vue.component('date-table', {
template: '<div><slot></slot></div>',
props: ['innerHtml'],
mounted: function () {
var self = this;
sorttable.makeSortable(this.$el.firstChild);
},
beforeDestroy: function () {
}
});
The markup:
<date-table v-once>
HERE IS MY ORDINARY HTML WHICH SHOULD BE SORTED BY
"sortable.makeSortable(...."
</data-table>
I am new in Angular
What I am going to try is to get the HTML of a page and reproduce it into an iFrame (it is an exercise).
I am using the following piece of code:
var prova = this._http.get(myUrl, {responseType: "text"}).subscribe((x) =>{
console.log(x);
});
I did it on a website (if is needed I can also insert the name of the pages) and it returns the html only of some pages.
In the other case the string x is empty.
Could it depend on connection?
Or there is some way to wait the end of the get request?
Or simply is wrong my approach and I should make a different type of request?
Your most likely going to need to use a library like puppeteer if you want to render a page properly. Puppeteer is a node library and useless headless chrome so I am not sure how well you could really integrate with Angular.
https://github.com/GoogleChrome/puppeteer
I wish to do the following things:
Insert external html blocks into new html pages
Use the same html header from one html file for a number of pages, without recreating the header again for all the pages
Please help!
You can use HTML Imports which is part of Web Components:
<head>
<link rel="import" href="/path/to/your/file.html">
</head>
If your page does not have to be pure HTML, you should consider using PHP or a similar server-side language.
There are plenty of options, depends on you:
1) use iframes (a lot problems with responsibility) http://www.w3schools.com/tags/tag_iframe.asp
2) ajax call in javascript, load external resource and then print it in placeholder tag (example is with jquery) http://www.w3schools.com/jquery/jquery_ajax_load.asp
3) use some server language/preprocessor (php, ruby, nodejs), depend if you can (need to by installed on server)
4) also there are static page generator, you add marks in your html, and they will compile html with marks to full static html http://hyde.github.io/ for example.
What you are talking about appears to be a process called templating. There are many ways to do this, including writing Javascript to insert pre-written HTML templates into the DOM (the webpage). You might also consider using a pre-written templating library such as http://handlebarsjs.com/ or another library which contains templating functions like http://underscorejs.org/. A simple MVC guide like:
http://blog.ircmaxell.com/2014/11/a-beginners-guide-to-mvc-for-web.html
May be helpful too, to get you started.
In a more practical sense, here's one possible solution:
To begin I would recommend putting the 'blocks' you want to insert in a separate folder. In the website I run, for example, I place them in the \templates folder (or subfolders) but you can more or less call it what you want as long as it makes sense to you. For our purposes let's say we've created block.html and put it in our \templates subfolder...
Now, within each template you will have whatever you want to load in; something like this:
<h2>Title of section</h2>
<p>My text.</p>
Or whatever you'd like. Then, you'll probably want to add an element to your main page which calls some Javascript, which loads your HTML template in when a particular condition occurs. For example, if you wanted to load in our block.html file you might write something like this:
<div id="calling-block" onclick="menuClicked('locationToInsert', 'block')"></div>
Which would call a Javascript function called 'menuClicked()' when we click the div with the id 'calling-block'.
Within the function we would write something like this:
<script>
function menuClicked(insertEl, UrlString, onTemplateLoaded) {
var xhttp = new XMLHttpRequest();
xhttp.onreadystatechange = function() {
if (xhttp.readyState == 4 && xhttp.status == 200) {
document.getElementById(insertEl).innerHTML = xhttp.responseText;
if (onTemplateLoaded) onTemplateLoaded();
};
};
console.log(UrlString);
xhttp.open("GET", UrlString, true);
xhttp.send();
};
</script>
This is a very simple way of doing things and I'm sure people will tell you there are problems with it, so I would definitely recommend doing your own reading as well, but I hope this covers the very basics.
You need tu use a server side functionality like php, aspx ...
Dumb question time. I was trying to integrate my JSON data with a flipbook plugin, using a Mustache templating system. Needless to say, this wasn't working at all.
I'm a jQuery noobie, so is there any easy way to bind and animate the JSON data to/with a plugin (with or without the Mustache tags)??
From your question it is a bit hard to deduce what you want, but I feel you got already all the pieces together. First the example you have been linking to in a comment: https://github.com/blasten/turn.js/wiki/Making-pages-dynamically-with-Ajax
This fetches not yet loaded pages via Ajax, and the sample code assumes the Ajax call gets HTML back from the server, as can be seen in the code snippet from there (after adding a missing '}':
$.ajax({url: "app?method=get-page-content&page="+page})
.done(function(data) {
element.html(data);
});
Here the done function processes the data it got back from the server by straight injecting it into the element, which is expected to contain the current page.
I assume next that you do have a server side method, but that method returns JSON instead. Let me assume for the moment that it returns the following structure:
{ "title" : "the title of page N",
"text" : "here is some text for the page N." }
The next thing is to render this JSON into into html in the done funktion, before inserting the result into the page. Looking at the short tutorial on the README.md this might look like:
$.ajax({url: "app?method=get-page-content&page="+page})
.done(function(data) {
var pageHtml = Mustache.render("<h2>{{title}}</h2><p>{{text}}</p>", data);
element.html(pageHtml);
});
If the server returns the proper data you should now see a
<h2>the title of page N</h2><p>here is some text for the page N.</p>
appear on the page.
I just switched from Umbraco 4 to Umbraco 5 and it seems like a lot has changed.
So what i basically want is a possibility to add a alternative template to my document-types.
The fall back template shall return the content as JSON.
Why, you say? I want to create an API-like way of accessing the Umbraco data from my mobile devices.
WebAPI (http://cultiv.nl/blog/2012/4/22/exposing-umbraco-5-content-through-the-aspnet-web-api/)
I have thought about using WebAPI from asp.net MVC 4, but the project is really just a proof of concept and i don't want to code each endpoint.
So i found a som guys that did a package for Umbraco 4 that actually does this and renders the content of #currentPage as Json. The template is hit by adding "/JSON" to the end of the url. Unfortunetly this uses xslt, which ihas been removed from Ubraco 5.1 (Good thing).
So. I bet it's simple to create a partial, a macro or a partial macro that does this and add it to a template. But is just cant figure out where to start.
Any help with that? What I'm looking for is a step guide on what steps to take, to make the setup. Rendering the stuff ad json in C# i can handle.
It's the integration into Umbraci I lack.
Hoe u can help.
The alternative templating works exactly like in v4: Just add the name of the template at the end of the url: yoururl/json
Then add a new razor view to the templates named "json" with the following code:
#inherits RenderViewPage
#using System.Web.Mvc.Html;
#using Umbraco.Cms.Web;
#{
Layout = "";
}
{
#foreach (var attribute in Model.Attributes)
{
string.Format("\"{0}\": \"{1}\"", attribute.AttributeDefinition.Alias, attribute.DynamicValue);
}
}
This code can be used as a starting point without using the web api or own controllers.
Don't forget to allow the tempplate on all document types
hth,
Thomas