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ijlee2 merged 1 commit into from
Aug 4, 2020
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Added installation instructions for FastBoot users #50

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27 changes: 27 additions & 0 deletions README.md
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Expand Up @@ -18,6 +18,33 @@ Installation
ember install ember-container-query
```

<details>
<summary>Use FastBoot? ⚠️</summary>

This addon uses nullish coalescing operator `??`. If you use [FastBoot](https://github.com/ember-fastboot/ember-cli-fastboot) (with `Node < v14.0`) and only support [browsers that natively support `??`](https://v8.dev/features/nullish-coalescing#support), you will run into a build error:

```bash
/var/folders/2z/93zyyhx13rs879qr8rzyxrb40000gn/T/broccoli-689520dxo26a682Mz/out-529-broccoli_merge_trees/assets/vendor.js:121232
return this.args.features ?? {};
^
SyntaxError: Unexpected token '?'
```

To prevent this, please make sure to add `node: 'current'` to your `config/targets.js` file.

```javascript
'use strict';

const browsers = [ ... ];

module.exports = {
browsers,
node: 'current'
};
```

</details>


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