ng-click as a class in AngularJS - angularjs

I'm trying to work out why this doesn't work:
<a class="ng-click: loadSomeDatas();">Click here to load some datas</a>
But this does:
<a ng-click="loadSomeDatas()">Click here to load some datas</a>
Why are you using classes?
Well ng-* attributes don't play nice on some of the clients I have to support, thus rather than shimming them I'd rather just use good ol' safe classes.

This looks like a documentation error. According to the source code, it can only be used as an attribute. The link function does not use restrict so the default is "attribute only".

Can you try using "data-ng-click"? Angular will still work with data- appended before it's attribute names and this should be valid syntax in older browsers.
<a data-ng-click="loadSomeDatas()" href="#">Click here to load some datas</a>

Related

Chips autocomplete for Angular 1.6. No angular-material

I would need to add an autocomplete chips component in our Angular 1.6 application. We are using Typescript, Webpack 2. As we are already using angular-ui-bootstrap, we do not want to introduce also angular-material in order to avoid style conflicts. However the wished result is exactly what material chips provide.
Is there a directive or component that i can use in my case? I found this library but it runs endless exceptions when I import it.
unfortunately I could find only partial solutions with bootstrap typehead, but then I would need to implement all the "chips" part, making me think of re-inventing the wheel.
Stack Newb here. I have an identical problem as yours. Here's how I resolved this:
1. Resolve the ReferenceError: error is not defined within the angular-chips library
The library you used (angular-chips) wasn't designed with typescript in mind. So, you'll first need to resolve the following error ReferenceError: error is not defined by defining it for them in the line above with var error;. This should prepare angular-chips for your webpack useage.
The second issue you'll find is how to add your typeahead-template-url with webpack in the mix. Rather than referring to a separate html file, use an inline template as referenced here: Bootstrap-UI Typeahead display more than one property in results list?.
If you're lazy like me and don't want to follow that hyperlink, use this as example:
2. Template to be added before the <chips> tag:
<script type="text/ng-template" id="yourTemplate.html">
<a tabindex="-1">
<i ng-class="'icon-'+match.model.type"></i>
<span ng-bind-html-unsafe="match.model.title | typeaheadHighlight:query"></span>
</a>
</scrip>
3. Include template in your directive:
typeahead-template-url:"yourTemplate.html"
Worked like a charm for me.

Are html tags inside directive attribute valid in AngularJS

I was doing code review and found custom directive with html tags inside attribute:
<form-field help="Use <b>foo</b> option to blah blah"></form-field>
I find it very unusual, and thought that it will not work in older browsers. But when I and author of this code checked - it turned out that it works in every version of IE we had (10+) and in Chrome/FF without any troubles.
Moreover I checked it in W3C validator (validator.w3.org) and it looks like HTML allows to have unescaped tags inside attributes. This SO answers Can data-* attribute contain HTML tags? confirms that too.
So my question is: Can this make troubles when used with AngularJS? Will this behavior change in Angular 2.0? And finally is this accepted usage of attributes?
I personally would like something like this:
<form-field>
<help>
Use <b>foo</b> option to blah blah
</help>
</form-fild>
Yes, you can do that with ng-bind-html directive. Take a look at this: https://docs.angularjs.org/api/ng/directive/ngBindHtml

Angularjs : Display accolades {{ }} several milliseconds before rendering

I am going to create an application with Angularjs. I have several modals (with the ng-dialog libraries) to create, modify data like an user for example.
When I open it, I can always see during several milliseconds names variables with accolades like {{user.name}}, before it renders the real value.
It is not really beautiful and then if someone has an idea about how to manage this type of display problems, please share it.
Thank you in advance.
There are couple of ways to deal with it, you could either use ng-bind or ng-cloak directives
Check angular ngCloak directive documentation
https://docs.angularjs.org/api/ng/directive/ngCloak
You can use ng-bind. Here is the official documentation on it:
It is preferable to use ngBind instead of {{ expression }} if a template is momentarily displayed >by the browser in its raw state before Angular compiles it. Since ngBind is an element attribute, >it makes the bindings invisible to the user while the page is loading
Usage:
Hello <span ng-bind="name"></span>!

Using angular-directives within JSF

I am trying to use angular together with an JSF backend.
I have the problem that custom directives are not processed within JSF when set as attributes for example:
<div my-directive .... > ...(some code)... </div>
JSF or XHTML sais that is not allowed to use attributes withtout being assigned (with an =).
To workaround, I used
<div my-directive ="" ...> ...(some code)... </div>
That would be fine with angularFS but when using the attribute
"my-directive" it will be removed after JSF rendering completely. The problem is my html relies on JSF ajax calls to a DB that I need as the backend relies on JSF 2.2/JSP.
The only thing I can bring it to work is using a tag/an element like
<my-directive> ... </my-directive>
Doing so is somewhat undesireable as I would like to use an attribute.
I learnt that JSF can be tricky if used with angularFS.
Did someone have this issue before?
If I understood your question correctly, JSF2.2 does what you need. It allows either to go with pure Html5 and bind with JSF or go with JSF and use p:passthrough.
#see a few links below
Link 1, Link 2, Link 3

How to select an element by classname using jqLite?

I'm trying to remove jquery from my Angular.js app in order to make it lighter, and put Angular's jqLite instead. But the app makes heavy use of find('#id') and find ('.classname'), which are not supported by jqLite, only 'tag names' (as per documentation)
wondered what do u feel would be the best approach to change it. One approach I thought about is to create custom HTML tags. for example:
change
<span class="btn btn-large" id="add-to-bag">Add to bag</span>
to
<a2b style="display:none;"><span class="btn btn-large" >Add to bag</span></a2b>
and
$element.find('#add-to-bag')
to
$element.find('a2b')
Any thoughts? other ideas?
thanks
Lior
Essentially, and as-noted by #kevin-b:
// find('#id')
angular.element(document.querySelector('#id'))
//find('.classname'), assumes you already have the starting elem to search from
angular.element(elem.querySelector('.classname'))
Note: If you're looking to do this from your controllers you may want to have a look at the "Using Controllers Correctly" section in the developers guide and refactor your presentation logic into appropriate directives (such as <a2b ...>).
angualr uses the lighter version of jquery called as jqlite which means it doesnt have all the features of jQuery. here is a reference in angularjs docs about what you can use from jquery.
Angular Element docs
In your case you need to find a div with ID or class name.
for class name you can use
var elems =$element.find('div') //returns all the div's in the $elements
angular.forEach(elems,function(v,k)){
if(angular.element(v).hasClass('class-name')){
console.log(angular.element(v));
}}
or you can use much simpler way by query selector
angular.element(document.querySelector('#id'))
angular.element(elem.querySelector('.classname'))
it is not as flexible as jQuery but what
If elem.find() is not working for you, check that you are including JQuery script before angular script....

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