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- {"ast":null,"code":"import toInteger from \"../_lib/toInteger/index.js\";\nimport toDate from \"../toDate/index.js\";\nimport requiredArgs from \"../_lib/requiredArgs/index.js\";\n/**\n * @name addMonths\n * @category Month Helpers\n * @summary Add the specified number of months to the given date.\n *\n * @description\n * Add the specified number of months to the given date.\n *\n * @param {Date|Number} date - the date to be changed\n * @param {Number} amount - the amount of months to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`.\n * @returns {Date} the new date with the months added\n * @throws {TypeError} 2 arguments required\n *\n * @example\n * // Add 5 months to 1 September 2014:\n * const result = addMonths(new Date(2014, 8, 1), 5)\n * //=> Sun Feb 01 2015 00:00:00\n */\nexport default function addMonths(dirtyDate, dirtyAmount) {\n requiredArgs(2, arguments);\n var date = toDate(dirtyDate);\n var amount = toInteger(dirtyAmount);\n if (isNaN(amount)) {\n return new Date(NaN);\n }\n if (!amount) {\n // If 0 months, no-op to avoid changing times in the hour before end of DST\n return date;\n }\n var dayOfMonth = date.getDate();\n\n // The JS Date object supports date math by accepting out-of-bounds values for\n // month, day, etc. For example, new Date(2020, 0, 0) returns 31 Dec 2019 and\n // new Date(2020, 13, 1) returns 1 Feb 2021. This is *almost* the behavior we\n // want except that dates will wrap around the end of a month, meaning that\n // new Date(2020, 13, 31) will return 3 Mar 2021 not 28 Feb 2021 as desired. So\n // we'll default to the end of the desired month by adding 1 to the desired\n // month and using a date of 0 to back up one day to the end of the desired\n // month.\n var endOfDesiredMonth = new Date(date.getTime());\n endOfDesiredMonth.setMonth(date.getMonth() + amount + 1, 0);\n var daysInMonth = endOfDesiredMonth.getDate();\n if (dayOfMonth >= daysInMonth) {\n // If we're already at the end of the month, then this is the correct date\n // and we're done.\n return endOfDesiredMonth;\n } else {\n // Otherwise, we now know that setting the original day-of-month value won't\n // cause an overflow, so set the desired day-of-month. Note that we can't\n // just set the date of `endOfDesiredMonth` because that object may have had\n // its time changed in the unusual case where where a DST transition was on\n // the last day of the month and its local time was in the hour skipped or\n // repeated next to a DST transition. So we use `date` instead which is\n // guaranteed to still have the original time.\n date.setFullYear(endOfDesiredMonth.getFullYear(), endOfDesiredMonth.getMonth(), dayOfMonth);\n return date;\n }\n}","map":{"version":3,"names":["toInteger","toDate","requiredArgs","addMonths","dirtyDate","dirtyAmount","arguments","date","amount","isNaN","Date","NaN","dayOfMonth","getDate","endOfDesiredMonth","getTime","setMonth","getMonth","daysInMonth","setFullYear","getFullYear"],"sources":["F:/workspace/202226701027/huinongbao-app/node_modules/date-fns/esm/addMonths/index.js"],"sourcesContent":["import toInteger from \"../_lib/toInteger/index.js\";\nimport toDate from \"../toDate/index.js\";\nimport requiredArgs from \"../_lib/requiredArgs/index.js\";\n/**\n * @name addMonths\n * @category Month Helpers\n * @summary Add the specified number of months to the given date.\n *\n * @description\n * Add the specified number of months to the given date.\n *\n * @param {Date|Number} date - the date to be changed\n * @param {Number} amount - the amount of months to be added. Positive decimals will be rounded using `Math.floor`, decimals less than zero will be rounded using `Math.ceil`.\n * @returns {Date} the new date with the months added\n * @throws {TypeError} 2 arguments required\n *\n * @example\n * // Add 5 months to 1 September 2014:\n * const result = addMonths(new Date(2014, 8, 1), 5)\n * //=> Sun Feb 01 2015 00:00:00\n */\nexport default function addMonths(dirtyDate, dirtyAmount) {\n requiredArgs(2, arguments);\n var date = toDate(dirtyDate);\n var amount = toInteger(dirtyAmount);\n if (isNaN(amount)) {\n return new Date(NaN);\n }\n if (!amount) {\n // If 0 months, no-op to avoid changing times in the hour before end of DST\n return date;\n }\n var dayOfMonth = date.getDate();\n\n // The JS Date object supports date math by accepting out-of-bounds values for\n // month, day, etc. For example, new Date(2020, 0, 0) returns 31 Dec 2019 and\n // new Date(2020, 13, 1) returns 1 Feb 2021. This is *almost* the behavior we\n // want except that dates will wrap around the end of a month, meaning that\n // new Date(2020, 13, 31) will return 3 Mar 2021 not 28 Feb 2021 as desired. So\n // we'll default to the end of the desired month by adding 1 to the desired\n // month and using a date of 0 to back up one day to the end of the desired\n // month.\n var endOfDesiredMonth = new Date(date.getTime());\n endOfDesiredMonth.setMonth(date.getMonth() + amount + 1, 0);\n var daysInMonth = endOfDesiredMonth.getDate();\n if (dayOfMonth >= daysInMonth) {\n // If we're already at the end of the month, then this is the correct date\n // and we're done.\n return endOfDesiredMonth;\n } else {\n // Otherwise, we now know that setting the original day-of-month value won't\n // cause an overflow, so set the desired day-of-month. Note that we can't\n // just set the date of `endOfDesiredMonth` because that object may have had\n // its time changed in the unusual case where where a DST transition was on\n // the last day of the month and its local time was in the hour skipped or\n // repeated next to a DST transition. So we use `date` instead which is\n // guaranteed to still have the original time.\n date.setFullYear(endOfDesiredMonth.getFullYear(), endOfDesiredMonth.getMonth(), dayOfMonth);\n return date;\n }\n}"],"mappings":"AAAA,OAAOA,SAAS,MAAM,4BAA4B;AAClD,OAAOC,MAAM,MAAM,oBAAoB;AACvC,OAAOC,YAAY,MAAM,+BAA+B;AACxD;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA;AACA,eAAe,SAASC,SAASA,CAACC,SAAS,EAAEC,WAAW,EAAE;EACxDH,YAAY,CAAC,CAAC,EAAEI,SAAS,CAAC;EAC1B,IAAIC,IAAI,GAAGN,MAAM,CAACG,SAAS,CAAC;EAC5B,IAAII,MAAM,GAAGR,SAAS,CAACK,WAAW,CAAC;EACnC,IAAII,KAAK,CAACD,MAAM,CAAC,EAAE;IACjB,OAAO,IAAIE,IAAI,CAACC,GAAG,CAAC;EACtB;EACA,IAAI,CAACH,MAAM,EAAE;IACX;IACA,OAAOD,IAAI;EACb;EACA,IAAIK,UAAU,GAAGL,IAAI,CAACM,OAAO,CAAC,CAAC;;EAE/B;EACA;EACA;EACA;EACA;EACA;EACA;EACA;EACA,IAAIC,iBAAiB,GAAG,IAAIJ,IAAI,CAACH,IAAI,CAACQ,OAAO,CAAC,CAAC,CAAC;EAChDD,iBAAiB,CAACE,QAAQ,CAACT,IAAI,CAACU,QAAQ,CAAC,CAAC,GAAGT,MAAM,GAAG,CAAC,EAAE,CAAC,CAAC;EAC3D,IAAIU,WAAW,GAAGJ,iBAAiB,CAACD,OAAO,CAAC,CAAC;EAC7C,IAAID,UAAU,IAAIM,WAAW,EAAE;IAC7B;IACA;IACA,OAAOJ,iBAAiB;EAC1B,CAAC,MAAM;IACL;IACA;IACA;IACA;IACA;IACA;IACA;IACAP,IAAI,CAACY,WAAW,CAACL,iBAAiB,CAACM,WAAW,CAAC,CAAC,EAAEN,iBAAiB,CAACG,QAAQ,CAAC,CAAC,EAAEL,UAAU,CAAC;IAC3F,OAAOL,IAAI;EACb;AACF","ignoreList":[]},"metadata":{},"sourceType":"module","externalDependencies":[]}
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