What is a clever way to code this Angular HTML using just a single <a> tag?

    <ul>
        <li ng-repeat="channel in Board.Channels">
            <a ng-if="channel.key == ''" ng-href="/{{Board.type}}/{{Board.id}}/{{Board.key}}">{{channel.title}}</a>
            <a ng-if="channel.key != ''" ng-href="/{{Board.type}}/{{Board.id}}/{{Board.key}}?channel={{channel.key}}">{{channel.title}}</a>
        </li>
    </ul>

The main distinction between the two links is that one includes a query parameter, while the other does not.

Is there a more streamlined way to handle this without using dual <a ng-if=""> condition tags?

javascriptangularjs

Answer №1

An example of the angular binding {{}} is when it contains code or scope variables. Another way to utilize angular bindings is through the ternary operator for binds which can be written like this: 

{{boolean && ifTrueValue || ifFalseValue}}
, resembling 
(boolean) ? ifTrueValue : ifFalseValue
. 

<ul>
    <li ng-repeat="channel in Board.Channels">
        <a ng-href="/{{Board.type}}/{{Board.id}}/{{Board.key}}{{(channel.key == '') && ''|| '?channel='+ channel.key}}">{{channel.title}}<span class="cgCount">{{channel.count}}</span></a>
    </li>
</ul>

Answer №2

It took me some time, but I finally managed to solve it.

    <ul>
        <li ng-repeat="channel in Board.Channels" ng-init="query= channel.key != '' && '/?channel='+channel.key || ''">
            <a ng-href="/{{Board.type}}/{{Board.id}}/{{Board.key}}{{query}}">{{channel.title}}</a>
        </li>
    </ul>

While Angular doesn't allow the use of the ?: operator in expressions, you can achieve similar results by using boolean statements like shown above.

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