Find total occurrences of a word within a sentence. Output word and count.

FindWordInstancesInArray

module.exports = {


    getText: function(req,res){

        var _text = req.param('text');
        var _splitUpWords = _text.split(' ');
        var _wordCount = {};
        
        // store all words in an object
        for (let index = 0; index < _splitUpWords.length; index++) {
            //{korea:0,trip:2}
            _wordCount[_splitUpWords[index]] = 0;
        }

        console.log('_wordCount: '+ JSON.stringify(_wordCount,null,2));


        // iterate through the original sentence we split into words.
        // find multiple ocurrences of a word
        // lastly update the word count tracker object.

        for (let index = 0; index < _splitUpWords.length; index++) {
            
            const word = _splitUpWords[index];
            console.log('the word being checked: '+ word);
            var _currentWord = _splitUpWords.filter(function(it) {return it === word;});

            console.log('_currentWord: '+ _currentWord);
            var _currentWordCount = _currentWord.length;
            console.log('_currentWordCount: '+ _currentWordCount);
            
            //update the _wordCount tracker
            _wordCount[word] = _currentWordCount;
        }

        console.log('_wordCount: '+ JSON.stringify(_wordCount,null,2));
   
    }
    

};