解析查询以使用解析javascript sdk按月和年计算记录数

Question

我正在尝试按月和年检索解析对象的行数，以按月显示分析。我是新手解析sdk而不知道如何根据月份和年份进行查询。请帮助我。

Answer 1

monthStart / monthEnd / yearStart / yearEnd是日期

var m_query = new Parse.Quer("COLLECTION");
m_query.greaterThan('createdAt', monthStart);
m_query.lessThan('createdAt', monthEnd);
m_query.count().then(num=> console.log(num));

var y_query = new Parse.Quer("COLLECTION");
y_query.greaterThan('createdAt', yearStart);
y_query.lessThan('createdAt', yearEnd);
y_query.count().then(num=> console.log(num));