More liveSearchStyle Option: containsAllWords

[josh-at-fieldsresearch]

Currently, liveSearchStyle has two options.
contains: contains exact phrase, case insensitive
startsWith: starts with exact phrase, case insensitive

The project we are working has had demands increased to have this option
'containsAllWords'

In short, it would take the phrase entered by the user and explode it on spaces. Then it would look for things that contain all of the words.

Specifically there is a large list of products in a format often like this
[MODEL] [SIZE] [ATTRIBUTES] [PRODUCT TYPE]

Model would have things like QG-65, QG-80, etc
Attributes would have things like: ROUND, SQUARE, SMOOTH, SERRATED

Ideally what would happen is that the end-user would search for
QG-80 SQUARE. And it would bring up options that include both "QG-80" and "SQUARE".

I have included an updated stringSearch as an example of we accomplished it.

  function stringSearch (li, searchString, method, normalize) {
    var stringTypes = [
          'display',
          'subtext',
          'tokens'
        ],
        searchSuccess = false,
        multiSuccess = false,
        multiFail = false;
    var keywords = searchString.split(" ");

    for (var i = 0; i < stringTypes.length; i++) {
      var stringType = stringTypes[i],
          string = li[stringType];

      if (string) {
        string = string.toString();

        // Strip HTML tags. This isn't perfect, but it's much faster than any other method
        if (stringType === 'display') {
          string = string.replace(/<[^>]+>/g, '');
        }

        if (normalize) string = normalizeToBase(string);
        string = string.toUpperCase();

        console.log(method);
		
        if (method === 'contains') {
          searchSuccess = string.indexOf(searchString) >= 0;
        } else if (method === 'containsAllWords') {
          //Searches within the stringType for all words.  If All words are found, returns true.
          multiSuccess=false;
          multiFail=false;
          
          keywords.forEach(function (item, index) {
              if(string.indexOf(item) >= 0) {
                  multiSuccess=true;
              } else {
                  multiFail=true; 
              }
          });
          
          if(multiSuccess && !multiFail) searchSuccess = true;
        } else {
          searchSuccess = string.startsWith(searchString);
        }

        if (searchSuccess) break;
      }
    }

    return searchSuccess;
  }