Document that numberDisplay is better than dataCount

[ubershmekel]

I want to show what's the percentage of the filtered items. I'm not sure how to do that with dc.dataCount.

I could have easily implemented it if .html took a function that allowed me to do anything instead of the string manipulation in the current API. https://github.com/dc-js/dc.js/blob/master/web/docs/api-latest.md#datacounthtml--object--datacount

    .html({
        some: '<strong>%filter-count</strong> selected out of <strong>%total-count</strong> records' +
            ' | <a href=\'javascript:dc.filterAll(); dc.renderAll();\'\'>Reset All</a>',
        all: 'All <strong>%total-count</strong> records shown. Click on the graphs to apply filters.'
    })

Would you be interested in such a pull request?

[gordonwoodhull]

I think you probably want to use the numberDisplay, which is more general.

[ubershmekel]

Yes. That worked. Thank you. Perhaps I can mention in the docs of dataCount and numberDisplay that they are related.

For future searchers this was my solution:

var createRowCounter = function() {
    var humanize = function(x) {
        // http://stackoverflow.com/questions/661562/how-to-format-a-float-in-javascript/29249277#29249277
        return x.toFixed(2).replace(/\.?0*$/,'');
    }

    var rowCounterId = 'rowCounter'
    addDiv(rowCounterId);
    var rowCounter = dc.numberDisplay ('#' + rowCounterId);
    rowCounter
        .dimension(ndx)
        .group(ndx.groupAll())
        .formatNumber(function() {
            var selectedCount = rowCounter.group().value();
            var total = rowCounter.dimension().size();
            if(selectedCount == total) {
                return 'All <strong>' + total + '</strong> records shown. Click on the graphs to apply filters.'
            }
            var resetButton = '<a href="javascript:dc.filterAll(); dc.renderAll();">Reset All</a>';
            var percent = humanize(100 * selectedCount / total);
            return 'Selected ' + percent + '% (' + selectedCount + ' out of ' + total + ' records) | ' + resetButton;
    });
}

[gordonwoodhull]

Good idea. Thanks for the report!