Creating a search dictionary in MongoDB for text validationDiscover how to implement a search dictionary in MongoDB

Question

Creating a search dictionary in MongoDB for text validationDiscover how to implement a search dictionary in MongoDB

I have a project in mind to create a spell-check dictionary for text verification. The dictionary contains 20,000 words. With my Meteor application, the goal is to input the text, split it into words, and verify each word against the dictionary.

However, I am questioning if this is the most efficient approach. Processing a text with 100 words would result in 100 database calls, which does not feel optimal. On the other hand, loading 20,000 words into an array for lookup seems excessive.

let incorrect = [];
text.split(' ').forEach(word => {
    if (!Dictionary.findOne({ word: word })) {
        incorrect.push(word);
    }
})

if (incorrect.length)
    console.log('There is a spelling mistake');
else
    console.log('Everything seems to be correct');

One alternative I'm considering is sending the array of split words as a query and receiving the missing elements as a result (array). However, I'm unsure if this can be achieved with MongoDB.

javascript mongodb meteor

Answer 1

Answer №1

If the text contains 100 words, there should be 100 corresponding documents in the database. Otherwise, there may be an issue with the text:

const arr = text.split(' ');
const wordCount = arr.length;

const docCount = Dictionary.find({
  word: {
    $in: arr,
  },
}).count();

if (wordCount !== docCount) {
  console.log('There is a spelling mistake');
}

Update

To find misspelled words, you can use a difference function to compare the input array with the words found in the database. Assuming you have underscore installed, you can use _.difference to achieve this:

const arr = text.split(' ');

const foundWord = Dictionary.find({
  word: {
    $in: arr,
  },
}).map(obj => obj.word);

const misspelledWords = _.difference(arr, foundWord);

console.log(misspelledWords);

Answer 2

If the text contains 100 words, there should be 100 corresponding documents in the database. Otherwise, there may be an issue with the text:

const arr = text.split(' ');
const wordCount = arr.length;

const docCount = Dictionary.find({
  word: {
    $in: arr,
  },
}).count();

if (wordCount !== docCount) {
  console.log('There is a spelling mistake');
}

Update

To find misspelled words, you can use a difference function to compare the input array with the words found in the database. Assuming you have underscore installed, you can use _.difference to achieve this:

const arr = text.split(' ');

const foundWord = Dictionary.find({
  word: {
    $in: arr,
  },
}).map(obj => obj.word);

const misspelledWords = _.difference(arr, foundWord);

console.log(misspelledWords);

Creating a search dictionary in MongoDB for text validationDiscover how to implement a search dictionary in MongoDB

Answer №1

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