'tag.htm'; break; case 'flag': $pre .= $default_pre .= 'flag.htm'; break; case 'my': $pre .= $default_pre .= 'my.htm'; break; case 'my_password': $pre .= $default_pre .= 'my_password.htm'; break; case 'my_bind': $pre .= $default_pre .= 'my_bind.htm'; break; case 'my_avatar': $pre .= $default_pre .= 'my_avatar.htm'; break; case 'home_article': $pre .= $default_pre .= 'home_article.htm'; break; case 'home_comment': $pre .= $default_pre .= 'home_comment.htm'; break; case 'user': $pre .= $default_pre .= 'user.htm'; break; case 'user_login': $pre .= $default_pre .= 'user_login.htm'; break; case 'user_create': $pre .= $default_pre .= 'user_create.htm'; break; case 'user_resetpw': $pre .= $default_pre .= 'user_resetpw.htm'; break; case 'user_resetpw_complete': $pre .= $default_pre .= 'user_resetpw_complete.htm'; break; case 'user_comment': $pre .= $default_pre .= 'user_comment.htm'; break; case 'single_page': $pre .= $default_pre .= 'single_page.htm'; break; case 'search': $pre .= $default_pre .= 'search.htm'; break; case 'operate_sticky': $pre .= $default_pre .= 'operate_sticky.htm'; break; case 'operate_close': $pre .= $default_pre .= 'operate_close.htm'; break; case 'operate_delete': $pre .= $default_pre .= 'operate_delete.htm'; break; case 'operate_move': $pre .= $default_pre .= 'operate_move.htm'; break; case '404': $pre .= $default_pre .= '404.htm'; break; case 'read_404': $pre .= $default_pre .= 'read_404.htm'; break; case 'list_404': $pre .= $default_pre .= 'list_404.htm'; break; default: $pre .= $default_pre .= theme_mode_pre(); break; } if ($config['theme']) { $conffile = APP_PATH . 'view/template/' . $config['theme'] . '/conf.json'; $json = is_file($conffile) ? xn_json_decode(file_get_contents($conffile)) : array(); } !empty($json['installed']) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . ($id ? $id . '_' : '') . $pre; (empty($path_file) || !is_file($path_file)) and $path_file = APP_PATH . 'view/template/' . $config['theme'] . '/htm/' . $pre; if (!empty($config['theme_child']) && is_array($config['theme_child'])) { foreach ($config['theme_child'] as $theme) { if (empty($theme) || is_array($theme)) continue; $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . ($id ? $id . '_' : '') . $pre; !is_file($path_file) and $path_file = APP_PATH . 'view/template/' . $theme . '/htm/' . $pre; } } !is_file($path_file) and $path_file = APP_PATH . ($dir ? 'plugin/' . $dir . '/view/htm/' : 'view/htm/') . $default_pre; return $path_file; } function theme_mode_pre($type = 0) { global $config; $mode = $config['setting']['website_mode']; $pre = ''; if (1 == $mode) { $pre .= 2 == $type ? 'portal_category.htm' : 'portal.htm'; } elseif (2 == $mode) { $pre .= 2 == $type ? 'flat_category.htm' : 'flat.htm'; } else { $pre .= 2 == $type ? 'index_category.htm' : 'index.htm'; } return $pre; } ?>javascript - How to pass variables to Pug's `script.` block? - Stack Overflow
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javascript - How to pass variables to Pug's `script.` block? - Stack Overflow

programmeradmin3浏览0评论

I have this code in my index.pug file

doctype html
html
  head
    title= title
  body
    script(src=`${source}`)
    script.
      for (var event of events){
        VClient.Event.subscribe(event, createDiv);
      } 

And here is how I pass the variables from Express to pug.

var express = require('express');
var app = express();
app.set('view engine', 'pug')

app.get('/', function(req, res){
    var id = req.query.id || 23717;
    var source = `/${id}.js`;
    res.render('index',
    {title: 'Preview Embed', source: source, events:["AD_START","AD_COMPLETE"]});
});
app.listen(5000);

Both title and source make it to the pug file. But not the events:

Uncaught ReferenceError: events is not defined

How do I correctly pass the variable inside the script. block?

I have this code in my index.pug file

doctype html
html
  head
    title= title
  body
    script(src=`${source}`)
    script.
      for (var event of events){
        VClient.Event.subscribe(event, createDiv);
      } 

And here is how I pass the variables from Express to pug.

var express = require('express');
var app = express();
app.set('view engine', 'pug')

app.get('/', function(req, res){
    var id = req.query.id || 23717;
    var source = `https://some.source.url/${id}.js`;
    res.render('index',
    {title: 'Preview Embed', source: source, events:["AD_START","AD_COMPLETE"]});
});
app.listen(5000);

Both title and source make it to the pug file. But not the events:

Uncaught ReferenceError: events is not defined

How do I correctly pass the variable inside the script. block?

Share Improve this question asked Mar 12, 2018 at 14:45 Nick SlavskyNick Slavsky 1,3303 gold badges21 silver badges42 bronze badges
Add a ment  | 

1 Answer 1

Reset to default 9

You need to basically render your variables in such a way that the end result gets interpolated as valid JS. It can be done with: !{JSON.stringify(events)}

for (var event of !{JSON.stringify(events)}) ...

which should expand to:

for (var event of ["AD_START","AD_COMPLETE"]) ...

Note the !{} which is for unescaped interpolation, as opposed to the more frequently used #{} which in this case wouldn't work as it would expand to something like ["..."] (i.e. escaped quotes)

CAUTION: Unescaped code can be dangerous. You must be sure to sanitize any user inputs to avoid cross-site scripting (XSS). See: How to pass variable from jade template file to a script file?

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