console\controllers\AssetController $targets

List of asset bundles, which represents output compressed files. You can specify the name of the output compressed file using 'css' and 'js' keys: For example:

'app\config\AllAsset' => [
    'js' => 'js/all-{hash}.js',
    'css' => 'css/all-{hash}.css',
    'depends' => [ ... ],
]

File names can contain placeholder "{hash}", which will be filled by the hash of the resulting file.

You may specify several target bundles in order to compress different groups of assets. In this case you should use 'depends' key to specify, which bundles should be covered with particular target bundle. You may leave 'depends' to be empty for single bundle, which will compress all remaining bundles in this case. For example:

'allShared' => [
    'js' => 'js/all-shared-{hash}.js',
    'css' => 'css/all-shared-{hash}.css',
    'depends' => [
        // Include all assets shared between 'backend' and 'frontend'
        'yii\web\YiiAsset',
        'app\assets\SharedAsset',
    ],
],
'allBackEnd' => [
    'js' => 'js/all-{hash}.js',
    'css' => 'css/all-{hash}.css',
    'depends' => [
        // Include only 'backend' assets:
        'app\assets\AdminAsset'
    ],
],
'allFrontEnd' => [
    'js' => 'js/all-{hash}.js',
    'css' => 'css/all-{hash}.css',
    'depends' => [], // Include all remaining assets
],