type-detector.js

var detectType = function(sample) {
	if(moment(sample, moment.ISO_8601, true).isValid()) {
		return 'datetime'
	} else if(moment(sample, 'YYYY-MM-DD', true).isValid()) {
		return 'date'
	} else if(moment(sample, 'X', true).isValid()) {
		return 'timestamp'
	} else if( ! isNaN(sample) && sample.indexOf('.') !== -1) {
		return 'float'
	} else if( ! isNaN(sample)) {
		return 'integer'
	} else {
		console.log(sample, Number(sample))
		return 'string'
	}
}