javascript - How to filter out various titles with same keywords -


i have strings similar contain same keywords.

if more 1 string has 3 or more of same keywords, want 1 string returned.

example:

ex machina example of female artificial intelligence. ex machina, why artificial intelligence represented female? artificial intelligence represented females in ex machina?

i filter strings 3 keywords keep 1 string.

not sure if can use regex alone or need javascript.

help?

how looping on sentences , removing punctuation, , keeping words in map. aggregate count , loop on hash find words have occurred more 3

function filter() {     var sentences = [         "ex machina example of female artificial intelligence.",         "ex machina, why artificial intelligence represented female?",         "will artificial intelligence represented females in ex machina?"     ];      var word_map = {};      (var = 0; < sentences.length; i++) {         var cur_sentence = sentences[i];         cur_sentence = remove_punctuations(cur_sentence).tolowercase().split(' ');          cur_sentence.foreach(function(w) {             if (word_map.hasownproperty(w)) {                 word_map[w] += 1;             } else {             word_map[w] = 1;             }         });     }      console.log(word_map);  }  function remove_punctuations(w) {     return w.replace(/[\.?,]/g, ''); }

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