# ember/template-no-action

💼 This rule is enabled in the 📋 `template-lint-migration` [config](https://github.com/ember-cli/eslint-plugin-ember#-configurations).

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Disallows the use of `{{action}}` helper.

The `{{action}}` helper is deprecated in favor of the `{{on}}` modifier and `{{fn}}` helper, which provide better performance and clearer intent.

## Examples

Examples of **incorrect** code for this rule:

```gjs
<template>
  <button {{on "click" (action "save")}}>Save</button>
</template>
```

```gjs
<template>
  {{action "doSomething"}}
</template>
```

Examples of **correct** code for this rule:

```gjs
<template>
  <button {{on "click" this.save}}>Save</button>
</template>
```

```gjs
<template>
  <button {{on "click" (fn this.save "arg")}}>Save with arg</button>
</template>
```

```gjs
<template>
  {{this.action}}
</template>
```

```gjs
import action from './my-action-helper';
<template>
  {{action this.handleClick}}
</template>
```

```gjs
<template>
  {{#each items as |action|}}
    <button {{action this.handleClick}}>x</button>
  {{/each}}
</template>
```

## Strict-mode behavior

`action` is an ambient strict-mode keyword in Ember (registered in `STRICT_MODE_KEYWORDS`), so `{{action this.x}}` works in `.gjs`/`.gts` templates without an explicit import. The rule still flags those uses to discourage the deprecated keyword — but skips reports when `action` resolves to a JS-scope binding (an import or local declaration) or a template block param.

## Migration

- Replace `(action "methodName")` with method references or `(fn this.methodName)`
- Replace `<button onclick={{action ...}}>` with `<button {{on "click" ...}}>`

## References

- [eslint-plugin-ember template-no-action](https://github.com/ember-cli/eslint-plugin-ember/blob/master/docs/rules/template-no-action.md)
- [Ember.js Deprecations - action helper](https://deprecations.emberjs.com/v3.x/#toc_action-helper)
- [Ember Modifier Documentation](https://guides.emberjs.com/release/components/template-lifecycle-dom-and-modifiers/)