How Can AngularJS Directives Implement Conditional CSS Styling?

Conditional CSS Styling with AngularJS

Q1. Conditional Styling for User Feedback on Deletion Confirmation

To provide instant visual feedback when a user selects items for deletion, without the need for a confirmation dialog, you can use AngularJS directives for conditional CSS styling.

Solution: Use ng-class to apply the pending-delete class when a checkbox for an item is checked.

<div ng-repeat="item in items" ng-class="{'pending-delete': item.checked}">
  ... HTML to display the item ...
  <input type="checkbox" ng-model="item.checked">
</div>

Q2. Personalized Site Presentation Customization

To allow users to personalize their site's appearance, with options like font size and color choices, you can use CSS styling dynamically.

Solution: Use ng-style to dynamically apply CSS styles based on user inputs.

<div class="main-body" ng-style="{color: myColor}">
  ...
  <input type="text" ng-model="myColor" placeholder="enter a color name">
</div>

Available AngularJS Directives for Conditional Styling

• ng-class: Apply or remove classes based on conditions.
• ng-style: Apply or remove styles based on expressions.
• ng-show/ng-hide: Toggle element visibility using expressions.
• ng-if: Remove/insert elements based on conditions.
• ng-switch: Replace elements based on conditions.
• ng-disabled/ng-readonly: Control enable/disable states of form elements.
• ng-animate: Add CSS3 transitions/animations to elements.

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