how to compare and filteredout data with next array special characters string reference in javascript

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here is my question how to categorize the array data with the help of other array data elements im confusing how to compare the two array data sets with the common value

how can i access the animal# in referenceBasedValues and how to compare with referenceData elements

 const referenceData = ['animal#', 'flower#' , 'Cats#', 'dogs/colorDogs/']

    const referenceBasedValues = [{ref : 'animal#cow', value : 'Cow'},
                  {ref : 'animal#pig', value : 'Pig'},
                  {ref : 'animal#hourse', value : 'Hourse'},
                  {ref : 'flower#rose', value : 'Rose'},
                  {ref : 'flower#leafRose', value : 'Leaf Rose'},
                  {ref : 'Cats#bigcat', value : 'Big cat'},
                  {ref : 'Cats#smallcat', value : 'Small Cat'},
                  {ref : 'dogs/colorDogs/whiteDog', value : 'White dog'},
                  {ref : 'dogs/colorDogs/BlackDog', value : 'Black dog'},]

Im expecting the output like this

  const finalData = [{reference : 'animal#' , values :['Cow' , 'Pig' ,'Hourse']},
                     {reference : 'flower#' , values :['Rose' , 'Leaf Rose' ,'Hourse']},
                     {reference : 'Cats#' , values :['Big cat' , 'Small Cat']},
                     {reference : 'dogs/colorDogs/' , values :['White dog','Black dog']}
                    ]

im able to accesing animal#, flower#, Cats# with substring(0 , referenceData[i].reference.lastIndexOf("#"))

but im not able to accessing dogs/colorDogs/ word in array while filtering

If any one give answer for this one so appreciatable

arrays javascript
1 Answers

// v1

const finalData = referenceData.map(reference => {
  const re = new RegExp('^' + reference);
  const values = referenceBasedValues.filter(base => re.test(base.ref)).map(base => base.value);
  return {
    reference,
    values,
  };
});

// v2

const re = new RegExp(`^(${referenceData.join('|')})`);
const finalData = Object.entries(referenceBasedValues.reduce((obj, { ref, value }) => {
  const match = re.exec(ref);
  if (match) {
    let key = match[0];
    obj[key] ??= [];
    obj[key].push(value);
  }
  return obj;
}, {})).map(([reference, values]) => ({ reference, values }));
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