javascript - JavaScript：Moment diff 函数给出不正确的天数差异

Question

var firstDate=moment('Sat Jul 30 2016 00:00:00 GMT+0530 (India Standard Time)');
var secondDate=moment('Fri Jul 29 2016 10:56:39 GMT+0530 (India Standard Time)');

console.log(firstDate.diff(secondDate,'days'));

预期产出：1

实际输出：-0

为什么会发生这种情况？

Answer 1

将第二个参数传递true给 diff 方法，以防止矩将差值四舍五入到最接近的零。

firstDate.diff(secondDate,'days', true)