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The best way to understand what a hook does is to look at where it occurs in the source code.
do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 1521 | $login_script .= "}\n"; // End of wp_attempt_focus(). |
| 1522 | |
| 1523 | /** |
| 1524 | * Filters whether to print the call to `wp_attempt_focus()` on the login screen. |
| 1525 | * |
| 1526 | * @since 4.8.0 |
| 1527 | * |
| 1528 | * @param bool $print Whether to print the function call. Default true. |
| 1529 | */ |
| 1530 | if ( apply_filters( 'enable_login_autofocus', true ) && ! $error ) { |
| 1531 | $login_script .= "wp_attempt_focus();\n"; |
| 1532 | } |
| 1533 | |
| 1534 | // Run `wpOnload()` if defined. |
| 1535 | $login_script .= "if ( typeof wpOnload === 'function' ) { wpOnload() }"; |
| 1536 | |
| 1537 | ?> |
| 1538 | <script type="text/javascript"> |
| 1539 | <?php echo $login_script; ?> |