选择angularjs ng-repeat中的第一个元素

Question

I have a ng-repeat populating li tag. I want by default first element should be clicked and a function should be fired. how can I do this using ng-repeated. I tried ng-if and ng-switch. but other than first element rest are not getting populated.

html:

<ul id = "colors">
    <li ng-repeat="color in colors | filter:query" >
        <div style="background-color : {{color.color}}; height : 20px; width : 20px;" ng-if = '$first' ng-click="getViewsByColors(color)">
        </div>
    </li>
</ul>

Answer 1

Use ng-init . Your click event will not trigger in that manner. According to the doc

The only appropriate use of ngInit is for aliasing special properties of ngRepeat. You should use controllers rather than ngInit to initialize values on a scope.

Your snippet will look like

<div style="background-color : {{color.color}}; height : 20px; width : 20px;" ng-init="($first) ? getViewsByColors(color) : ''">

It will execute the getViewsByColors function for first iteration of your array/object. You don't need to use ng-if in this case. It will not work for the rest of your values. `