Removing the empty option in a select element with ng-model

There's a situation I'm dealing with that involves a select dropdown along with a refresh button and a plus button. The issue arises when clicking the refresh button sets the model to null, while clicking the plus button displays the dropdown with an empty option. My goal is to have the dropdown appear without the empty option only when the ng-model is null.

Below is the code snippet:

<div class="col-xs-6 npd">
    <div ng-if="minAge==null">
        <select ng-options="minAge.val as minAge.txt for minAge in ddloptions" ng-model="minAge" ng-change="ageCheck()">
         </select>
        <p>Select <br><span>Minimum age</span></p>
    </div>
    <div ng-if="minAge!=null">
        <a ng-click="minAgeRmv()"><img src="images/prf-mprmv.png" /></a>
        <p>Minimum age <br><span>{{minAge}}</span></p>
    </div>
</div>

I would greatly appreciate any assistance on this matter.

Answer №1

If you're looking to get rid of the blank option, simply place it within the select tag like this:

<option value="" style="display:none;">Choose Age ...</option>

Answer №2

My belief is that this solution will be effective in achieving the desired outcome. It specifically targets and filters out any instances where minAge.txt is not null (All values where minAge.txt is not null).

<select ng-options="minAge.val as minAge.txt for minAge in ddloptions | filter:{minAge.txt:'!!'}"
        ng-model="minAge" ng-change="ageCheck()">

Answer №3

Implement the Array.prototype.filter method to exclude any properties with a value of null

ddloptions = ddloptions.filter(function(item) {
    return item.minAge !== null;
});

You can utilize this within your controller during data refresh or integrate it into an Angular Filter

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