findBySimilarity.js

const normalize = str => {

    return String(str)
      .normalize('NFD')
      .replace(/[\u0300-\u036f]/g, "")
  
  }
  
  // Main function
  const findBySimilarity = (list = [], strings = '', keys = [], terms = normalize( strings ).toLowerCase().split(' ')) => {
  
    return list
      .filter(el => terms
      .some(t => keys
      .some(k => normalize( el[ k ] ).toLowerCase().includes( t ) ) ) )
  
  }

  export default findBySimilarity

//uso
array = [{"chave1":"valor1"},{"chave2":"valor2"}]
const result = findBySimilarity(array, 'valor1' ['chave1', 'chave2'])

// creditos https://github.com/Woodsphreaker