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explanations

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Ilya Kantor 2019-05-10 10:43:10 +03:00
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1-js/13-modules/01-modules-intro/article.md
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@ -301,14 +301,14 @@ There are two notable differences of external module scripts:
That ensures better security by default.
### No bare modules allowed
### No "bare" modules allowed
In the browser, in scripts (not in HTML), `import` must get either a relative or absolute URL. So-called "bare" modules, without a path, are not allowed.
In the browser, in scripts (not in HTML), `import` must get either a relative or absolute URL. Modules without any path are called "bare" modules. Such modules are not allowed in `import`.
For instance, this `import` is invalid:
```js
import {sayHi} from 'sayHi'; // Error, "bare" module
// must be './sayHi.js' or wherever the module is
// the module must have a path, e.g. './sayHi.js' or wherever the module is
```
Certain environments, like Node.js or bundle tools allow bare modules, as they have own ways for finding modules and hooks to fine-tune them. But browsers do not support bare modules yet.
@ -328,7 +328,7 @@ Old browsers do not understand `type="module"`. Scripts of the unknown type are
</script>
```
If we use bundle tools, then as modules are bundled together, their `import/export` statements are replaced by special bundler calls, so the resulting build does not require `type="module"`, and we can put it into a regular script:
If we use bundle tools, then as scripts are bundled together into a single file (or few files), `import/export` statements inside those scripts are replaced by special bundler functions. So the resulting "bundled" script does not contain any `import/export`, it doesn't require `type="module"`, and we can put it into a regular script:
```html
<!-- Assuming we got bundle.js from a tool like Webpack -->