我需要关于查询部分的帮助
client.on('message', (message) => {
if (!message.content.startsWith(prefix) || message.author.bot) return;
const args = message.content.slice(prefix.length).split(/ +/);
const command = args.shift().toLowerCase();
const query = command.slice(command.search(' '), command.search('-'));
if (command === 'ping') {
message.channel.send('pong!');
} else if (command === 'joke') {
message.channel.send('Your life');
} else if (command === 'youtube') {
message.channel.send('https://www.youtube.com/results?search_query=' + query);
message.channel.send(query);
} else if (command === 'commands') {
message.channel.send('commands so far are +ping, +joke, +youtube, +commands');
}
});
错误是这样的'''
(node:15016) UnhandledPromiseRejectionWarning: DiscordAPIError: Cannot send an empty message
at RequestHandler.execute (C:\Users\kalar\Desktop\JavaPr\JS_Bot\node_modules\discord.js\src\rest\RequestHandler.js:170:25)
at processTicksAndRejections (internal/process/task_queues.js:97:5)
(node:15016) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). To terminate the node process on unhandled promise rejection, use the CLI flag `--unhandled-rejections=strict` (see https://nodejs.org/api/cli.html#cli_unhandled_rejections_mode). (rejection id: 1)
(node:15016) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
'''
我在更改之前就这样做了，我只会发送youtube链接，而不是查询，因为我试图进行''else if（command==='youtube'){message.channel.send('https://www.youtube.com/results？search_query='+query)；'''
问题出在query变量上。
// this is overly complicated and will not work:
const query = command.slice(command.search(' '), command.search('-'));
// instead:
const query = args.join(' ');
还有，在这条线上:
message.channel.send('https://www.youtube.com/results?search_query=' + query);
您应该使用encodeURI()函数。
message.channel.send(
encodeURI('https://www.youtube.com/results?search_query=' + query)
);
