How to match exact phrase with dynamic string in text index Mongodb?

问题

I have this query

db.words.find({ "$text": { "$search": "\"cake sale\"" } }) // gives expected answer in robo3T

Now my text search is dynamic

const text = "cake sale"
db.words.find({ "$text": { "$search": `\\"${text}\\"` } })

But it does not give me expected output with nodejs. So How can I parse the backslash here?

回答1:

Your query is incorrect. You need to change the query

db.words.find({ "$text": { "$search": `"\"${text}\"` } })

to

db.words.find({ "$text": { "$search": `\"${text}\"` } })

Since, there is an extra double quote (") in the beginning after the first backquote. Doing that will fix your query.

Simple illustration:

console.log("\"cake sale\"");

var text = "cake sale";
console.log(`\"${text}\"`);
// both the console.log gives same result

来源：https://stackoverflow.com/questions/59988073/how-to-match-exact-phrase-with-dynamic-string-in-text-index-mongodb