eturn"P0D";var l=u<0?"-":"",M=Jt(this._months)!==Jt(u)?"-":"",h=Jt(this._days)!==Jt(u)?"-":"",L=Jt(this._milliseconds)!==Jt(u)?"-":"";return l+"P"+(d?M+d+"Y":"")+(r?M+r+"M":"")+(_?h+_+"D":"")+(i||o||m?"T":"")+(i?L+i+"H":"")+(o?L+o+"M":"")+(m?L+m+"S":"")}var Rt=Pa.prototype;Rt.isValid=function(){return this._isValid},Rt.abs=function(){var e=this._data;return this._milliseconds=ht(this._milliseconds),this._days=ht(this._days),this._months=ht(this._months),e.milliseconds=ht(e.milliseconds),e.second...