# ember/template-no-valueless-arguments

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

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Similar to HTML attributes, component arguments will default to an empty string when they are not explicitly assigned a value. This behavior isn't documented anywhere so depending on it isn't recommended and usually the result of a user-error. Since it _is_ valid syntax, accidental use of this behavior can be hard to detect and cause confusing bugs.

## Examples

This rule **forbids** the following:

```gjs
<template><Editor @defaultText /></template>
```

```gjs
<template><SomeComponent @valuelessByAccident{{@canBeAModifier}} /></template>
```

This rule **allows** the following:

```gjs
<template><Editor @defaultText="" /></template>
```

## Migration

Explicitly assign a value to all arguments.

## Related Rules

- [ember/no-quoteless-attributes](no-quoteless-attributes.md)

## References

- [RFC-311: angle bracket invocation](https://emberjs.github.io/rfcs/0311-angle-bracket-invocation.html)
- [Attributes in the HTML specification](https://html.spec.whatwg.org/#syntax-attributes))