Angular js ng style not working

Answer 1

This is actually a simple fix, have myStyle be more of a myColor type of declaration and on ng-style have your {{'color':myColor}} expression:

<select ng-model="myColor">
    <option value="">none</option>
    <option value="red">Red</option>
    <option value="green">Green</option>
</select>

<div ng-style="{'color':myColor}">
    <p>Text to change color</p>
</div>

There is no need for a ng-change function in THIS instance.

Working Example

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Edit, explanation:

Value in select option is not an angular directive so myStyle is being set to literally "{color:'red'}" not the Javascript Object {"color":"red"} that Angular is looking for and can parse in ng-style.

Since the literal value of "{color:'red'}" looks like the object then you will not notice the difference in batarang. But if you run a console.log() you'll see the difference.

Set your example one, then set example 2 to red and change your clearFilter function by adding the two logs and look at the output and you'll see what I mean:

$scope.clearFilter = function () {
    console.log('myStyle1', $scope.myStyle1);
    console.log('myStyle', $scope.myStyle);
    $scope.query = '';
    $scope.orderProp = '';
    $scope.myColor = '';
};