Creating a duplicate key in a JavaScript object that aligns with MongoDB's multiple search string rule: a step-by-step guide

I am attempting to utilize MongoDB for performing searches based on multiple search strings.

Here is the format for executing a search with multiple strings in MongoDB:

db.meals.find({ $and: [ { mealName: /fish/ }, { mealName: /rice/ }, { mealName: /spicy/ } ] })

One challenge I encountered is that JavaScript objects cannot have duplicate keys within the same object.

I tried approaching the issue like this:

const str = "fish rice spicy";
const transform = (searchInput) => {
  const searchField = {}
  let searchArray = searchInput.split(" ");
  searchArray = searchArray.map((item)=>{
    const fixKey = "mealName";
    searchField[fixKey] = new RegExp(item);
  })
  return searchField;
}
console.log(transform(str)); // {mealName: /spicy/}

Given this scenario,

How can I structure the MongoDB multiple searching string format in JavaScript?

Answer №1

To query using mongoDB and the $in operator, follow this example:

const foodArray = "pasta pizza salad".split(" ");
db.recipes.find({ dishName: {$in: foodArray } })

This code will retrieve all entries where the dishName matches any of the items in the foodArray.

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