Ember 2.16.x: Accessing Ember.Handlebars.Utils.escapeExpression with new import syntax

  • 8 months ago
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In Ember 2.16.x, the Ember.Handlebars.Utils.escapeExpression method was deprecated and eventually removed in favor of using the htmlSafe helper for escaping HTML. If you're using a newer version of Ember (2.16.x and later), you should follow the updated approach.

Here's how you can use the htmlSafe helper to achieve the same effect of escaping HTML in Ember templates:

  1. Import the htmlSafe helper in your Ember component or controller:

    javascript
    import { htmlSafe } from '@ember/template';
  2. Use the htmlSafe helper to escape HTML within your template:

    handlebars
    <div>
    {{htmlSafe someUnsafeString}}
    </div>

Here's an example using the new syntax in an Ember component:

javascript
// app/components/my-component.js

import Component from '@glimmer/component';
import { htmlSafe } from '@ember/template';

export default class MyComponentComponent extends Component {
get safeString() {
const unsafeString = '<span>This is an <em>unsafe</em> string.</span>';
return htmlSafe(unsafeString);
}
}
handlebars
<!-- app/components/my-component.hbs -->

<div>
{{safeString}}
</div>

Using the htmlSafe helper ensures that the HTML content is treated as trusted and won't be escaped by Ember's rendering engine.

Please note that it's important to use htmlSafe judiciously, only when you're sure that the content is safe and doesn't come from user input or external sources that might contain malicious code.