How to get all the values that contains part of a string using mongoose find?

Question

I have the following problem retrieving data from MongoDB using mongoose.

Here is my Schema:

const BookSchema = new Schema(
    {
        _id:Number,         


        

Answer 1

Find the posts with title containing : cool , and case insensitive match: (Very Cool have cool also)

const s = 'cool'
const regex = new RegExp(s, 'i') // i for case insensitive
Posts.find({title: {$regex: regex}})