AssetModel::jsPath PHP Method

    public static function jsPath($filename, $folder = '', $themeType = '')
    {
        if (!$themeType) {
            $themeType = isMobile() ? 'mobile' : 'desktop';
        }
        // 1. Check for a url.
        if (isUrl($filename)) {
            return [$filename, $filename];
        }
        $paths = [];
        // 2. Check for a full path.
        if (strpos($filename, '/') === 0) {
            $filename = ltrim($filename, '/');
            // Direct path was given
            $filename = "/{$filename}";
            $path = PATH_ROOT . $filename;
            if (file_exists($path)) {
                deprecated(htmlspecialchars($path) . ": AssetModel::JsPath() with direct paths");
                return [$path, $filename];
            }
            return false;
        }
        // 3. Check the theme.
        $theme = Gdn::themeManager()->themeFromType($themeType);
        if ($theme) {
            $path = "/{$theme}/js/{$filename}";
            $paths[] = [PATH_THEMES . $path, "/themes{$path}"];
        }
        // 4. Static, Plugin, or App relative file
        if ($folder) {
            if (in_array($folder, ['resources', 'static'])) {
                $path = "/resources/js/{$filename}";
                $paths[] = [PATH_ROOT . $path, $path];
                // A plugin-relative path was given
            } elseif (stringBeginsWith($folder, 'plugins/')) {
                $folder = substr($folder, strlen('plugins/'));
                $path = "/{$folder}/js/{$filename}";
                $paths[] = [PATH_PLUGINS . $path, "/plugins{$path}"];
                // Allow direct-to-file links for plugins
                $paths[] = [PATH_PLUGINS . "/{$folder}/{$filename}", "/plugins/{$folder}/{$filename}", true];
                // deprecated
                // An app-relative path was given
            } else {
                // App-relative path under the theme
                if ($theme) {
                    $path = "/{$theme}/{$folder}/js/{$filename}";
                    $paths[] = [PATH_THEMES . $path, "/themes{$path}"];
                }
                $path = "/{$folder}/js/{$filename}";
                $paths[] = [PATH_APPLICATIONS . $path, "/applications{$path}"];
            }
        }
        // 5. Check the global js folder.
        $paths[] = [PATH_ROOT . "/js/{$filename}", "/js/{$filename}"];
        $paths[] = [PATH_ROOT . "/js/library/{$filename}", "/js/library/{$filename}"];
        foreach ($paths as $info) {
            if (file_exists($info[0])) {
                if (!empty($info[2])) {
                    // This path is deprecate. The script should be moved into a /js/ sub-directory
                    unset($info[2]);
                    deprecated("The file path '{$folder}/{$filename}'", "'{$folder}/js/{$filename}'");
                }
                return $info;
            }
        }
        if (!stringEndsWith($filename, 'custom.js')) {
            trace("Could not find file '{$filename}' in folder '{$folder}'.");
        }
        return false;
    }