{"id":32550,"date":"2024-11-25T11:29:35","date_gmt":"2024-11-25T03:29:35","guid":{"rendered":"https:\/\/fwq.ai\/blog\/32550\/"},"modified":"2024-11-25T11:29:35","modified_gmt":"2024-11-25T03:29:35","slug":"%e4%bd%bf%e7%94%a8-date-fns-%e7%ae%80%e5%8c%96%e6%97%a5%e6%9c%9f%e6%93%8d%e4%bd%9c","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/32550\/","title":{"rendered":"\u4f7f\u7528 date-fns \u7b80\u5316\u65e5\u671f\u64cd\u4f5c"},"content":{"rendered":"

\"\u4f7f\u7528<\/p>\n

\u65e5\u671f\u64cd\u4f5c\u662f JavaScript \u4e2d\u7684\u5e38\u89c1\u4efb\u52a1\uff0c\u539f\u751f Date \u5bf9\u8c61\u63d0\u4f9b\u4e86\u4e00\u4e9b\u57fa\u672c\u529f\u80fd\u3002\u4f46\u662f\uff0c\u5904\u7406\u65e5\u671f\u53ef\u80fd\u5f88\u590d\u6742\u4e14\u5bb9\u6613\u51fa\u9519\uff0c\u5e76\u4e14 Date \u7f3a\u4e4f\u6267\u884c\u8fd9\u4e9b\u5e38\u89c1\u4efb\u52a1\u6240\u9700\u7684\u529f\u80fd\u3002\u4e3a\u4e86\u4f7f\u65e5\u671f\u5904\u7406\u53d8\u5f97\u66f4\u5bb9\u6613\u3001\u66f4\u53ef\u9760\uff0c\u5f00\u53d1\u4eba\u5458\u5fc5\u987b\u4f9d\u8d56\u7b2c\u4e09\u65b9\u5e93\u3002 JavaScript \u751f\u6001\u7cfb\u7edf\u4e2d\u6709\u5f88\u591a\u53ef\u7528\u7684\uff0c\u4f46 date-fns \u8131\u9896\u800c\u51fa\uff0c\u6210\u4e3a\u4e8b\u5b9e\u4e0a\u7684\u6807\u51c6\u3002\u5b83\u662f\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790\u3001\u683c\u5f0f\u5316\u548c\u64cd\u4f5c\u65e5\u671f\u7684\u8f7b\u91cf\u7ea7\u5b9e\u7528\u7a0b\u5e8f\u5e93\u3002<\/p>\n

\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u7d22\u4f7f\u7528 date-fns \u7684\u57fa\u7840\u77e5\u8bc6\uff0c\u5e76\u6db5\u76d6\u5904\u7406\u65e5\u671f\u7684\u6700\u5e38\u7528\u51fd\u6570\u3002\u6700\u540e\uff0c\u60a8\u5c06\u6df1\u5165\u4e86\u89e3\u5982\u4f55\u5c06 date-fns \u5408\u5e76\u5230 JavaScript \u9879\u76ee\u4e2d\u4ee5\u6709\u6548\u5904\u7406\u65e5\u671f\u3002<\/p>\n

\u5b89\u88c5 date-fns<\/h2>\n

date-fns \u662f\u4e00\u4e2a Node \u5305\u3002\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u4f7f\u7528 NPM\u3001Babel \u6216 Webpack \u7b49\u5de5\u5177\u5806\u6808\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b npm \u547d\u4ee4\u5b89\u88c5 date-fns\uff1a<\/p>\n

npm install date-fns --save\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5982\u679c\u60a8\u5bf9\u5176\u4e2d\u4efb\u4f55\u4e00\u4e2a\u611f\u5230\u964c\u751f\uff0c\u8bf7\u4e0d\u8981\u62c5\u5fc3\uff1b\u60a8\u4e5f\u53ef\u4ee5\u5728\u6d4f\u89c8\u5668\u4e2d\u4f7f\u7528 date-fns\uff01\u53ea\u9700\u5c06\u4ee5\u4e0b <script><\/script> \u5143\u7d20\u6dfb\u52a0\u5230\u60a8\u7684 HTML \u4e2d\u5373\u53ef\uff1a<\/p>\n
<script type=\"module\">\n    import * as dateFns from 'https:\/\/cdn.jsdelivr.net\/npm\/date-fns\/+esm';\n<\/script><\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u8fd9\u662f\u4e00\u4e2a JavaScript \u6a21\u5757\uff0c\u4ece jsdelivr \u7f51\u7edc\u5bfc\u5165\u6700\u65b0\u7248\u672c\u7684 date-fns \u5e93\u3002\u901a\u8fc7\u6b64\u5bfc\u5165\uff0c\u6240\u6709 date-fns \u51fd\u6570\u548c\u5b9e\u7528\u7a0b\u5e8f\u90fd\u53ef\u4ee5\u901a\u8fc7 dateFns \u5bf9\u8c61\u8bbf\u95ee\u3002\u8bf7\u6ce8\u610f\uff0c\u8981\u6210\u529f\u8fd0\u884c\u672c\u6559\u7a0b\u4e2d\u7684\u6240\u6709\u4ee3\u7801\uff0c\u4ee3\u7801\u5fc5\u987b\u5305\u542b\u5728\u5bfc\u5165 date-fns \u7684\u540c\u4e00\u6a21\u5757\u4e2d\u3002<\/p>\n
\u683c\u5f0f\u5316\u65e5\u671f<\/h2>\n
\u5904\u7406\u65e5\u671f\u65f6\u7684\u4e3b\u8981\u4efb\u52a1\u4e4b\u4e00\u662f\u5c06\u5176\u683c\u5f0f\u5316\u4e3a\u4eba\u7c7b\u53ef\u8bfb\u7684\u5b57\u7b26\u4e32\u3002 JavaScript \u7684 Date \u5bf9\u8c61\u5bf9\u683c\u5f0f\u5316\u65e5\u671f\u5177\u6709\u57fa\u672c\u652f\u6301\uff0c\u4f46\u7f3a\u4e4f\u5bf9\u81ea\u5b9a\u4e49\u683c\u5f0f\u7684\u652f\u6301\u3002 date-fns \u4e3a\u6b64\u63d0\u4f9b\u4e86\u683c\u5f0f\u5316\u51fd\u6570\u3002<\/p>\n
const today = new Date();\nconst formattedDate1 = dateFns.format(today, 'dd MMMM yyyy');\nconsole.log(formattedDate1); \/\/ Output: \"29 July 2023\"\n\nconst formattedDate2 = dateFns.format(today, 'yyyy-MM-dd');\nconsole.log(formattedDate2); \/\/ Output: 2023-07-29\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u521b\u5efa\u4e00\u4e2a\u65b0\u7684 Date \u5bf9\u8c61\uff0c\u8868\u793a\u5f53\u524d\u65e5\u671f\u3002\u7136\u540e\uff0c\u6211\u4eec\u4f7f\u7528 format() \u51fd\u6570\u6839\u636e\u63d0\u4f9b\u7684\u683c\u5f0f\u5b57\u7b26\u4e32\u683c\u5f0f\u5316\u65e5\u671f\u3002\u683c\u5f0f\u5b57\u7b26\u4e32\u4f7f\u7528\u5360\u4f4d\u7b26\uff0c\u4f8b\u5982 dd \u8868\u793a\u4e24\u4f4d\u6570\u7684\u65e5\u671f\uff0cMMMM \u8868\u793a\u5b8c\u6574\u7684\u6708\u4efd\u540d\u79f0\uff0cyyyy \u8868\u793a\u5168\u5e74\u3002<\/p>\n
\u7b2c\u4e8c\u6b21\u8c03\u7528 format() \u4f7f\u7528 yyyy-MM-dd \u683c\u5f0f\u3002 MM \u5360\u4f4d\u7b26\u6307\u7684\u662f\u4e24\u4f4d\u6570\u6708\u4efd\u3002<\/p>\n
format() \u51fd\u6570\u8fd8\u53ef\u4ee5\u8f7b\u677e\u683c\u5f0f\u5316\u65f6\u95f4\u3002\u4f7f\u7528 h \u6216 hh \u5360\u4f4d\u7b26\u8f93\u51fa\u4e00\u4f4d\u6216\u4e24\u4f4d\u6570\u7684\u5c0f\u65f6\uff0cmm \u8f93\u51fa\u4e24\u4f4d\u6570\u7684\u5206\u949f\uff0ca \u8f93\u51fa AM\/PM \u6307\u793a\u5668\u3002\u4f8b\u5982\uff1a<\/p>\n
const formattedDateAndTime = dateFns.format(today, 'yyyy-MM-dd h:mm a');\nconsole.log(formattedDateAndTime); \/\/ Output: 2023-07-29 12:50 PM\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u60a8\u53ef\u4ee5\u4f7f\u7528\u8bb8\u591a\u5360\u4f4d\u7b26\u6765\u8bbe\u7f6e\u65e5\u671f\u548c\u65f6\u95f4\u7684\u683c\u5f0f\u3002\u4e0b\u8868\u5217\u51fa\u4e86\u4e00\u4e9b\u5185\u5bb9\uff0c\u4f46\u8bf7\u52a1\u5fc5\u8bbf\u95ee\u6587\u6863\u4ee5\u83b7\u53d6\u5b8c\u6574\u5217\u8868\u3002<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n
\u5355\u4f4d<\/th>\n\u5360\u4f4d\u7b26<\/th>\n\u7ed3\u679c\u793a\u4f8b<\/th>\n<\/tr>\n<\/thead>\n
\u65e5\u5386\u5e74\uff082 \u4f4d\u6570\u5b57\uff09<\/td>\n\u5e74<\/td>\n23<\/td>\n<\/tr>\n
\u65e5\u5386\u5e74\uff084 \u4f4d\u6570\u5b57\uff09<\/td>\n\u5e74<\/td>\n2023<\/td>\n<\/tr>\n
\u6708\u4efd\uff081 \u4f4d\u6570\u5b57\uff09<\/td>\n\u4e2d\u53f7<\/td>\n7<\/td>\n<\/tr>\n
\u6708\u4efd\uff082 \u4f4d\u6570\u5b57\uff09<\/td>\n\u6beb\u7c73<\/td>\n07<\/td>\n<\/tr>\n
\u6708\u4efd\uff08\u7b80\u79f0\uff09<\/td>\nMMM<\/td>\n\u4e00\u6708\u3001\u4e8c\u6708\u3001\u5341\u4e8c\u6708<\/td>\n<\/tr>\n
\u6708\u4efd\uff08\u5168\u540d\uff09<\/td>\nMMMM<\/td>\n\u4e00\u6708\u3001\u4e8c\u6708<\/td>\n<\/tr>\n
\u4e00\u6708\u4e2d\u7684\u67d0\u5929\uff081 \u4f4d\u6570\u5b57\uff09<\/td>\nd<\/td>\n5, 23<\/td>\n<\/tr>\n
\u6708\u4efd\u4e2d\u7684\u65e5\u671f\uff082 \u4f4d\u6570\u5b57\uff09<\/td>\ndd<\/td>\n05, 23<\/td>\n<\/tr>\n
\u661f\u671f\u51e0\uff08\u7f29\u77ed\uff09<\/td>\nE<\/td>\n\u5468\u4e00\u3001\u5468\u4e8c\u3001\u5468\u4e09<\/td>\n<\/tr>\n
\u661f\u671f\u51e0\uff08\u5168\u540d\uff09<\/td>\nEEEE<\/td>\n\u5468\u4e00\u3001\u5468\u4e8c<\/td>\n<\/tr>\n
\u4e0a\u5348\u3001\u4e0b\u5348<\/td>\n\u4e00\u4e2a<\/td>\n\u4e0a\u5348\u3001\u4e0b\u5348<\/td>\n<\/tr>\n
\u5c0f\u65f6\uff0812 \u5c0f\u65f6\u5236\uff0c1 \u4f4d\u6570\u5b57\uff09<\/td>\n\u5c0f\u65f6<\/td>\n1,2,10<\/td>\n<\/tr>\n
\u5c0f\u65f6\uff0812 \u5c0f\u65f6\u5236\uff0c2 \u4f4d\u6570\u5b57\uff09<\/td>\n\u5475\u5475<\/td>\n01,02,10<\/td>\n<\/tr>\n
\u5c0f\u65f6\uff0824 \u5c0f\u65f6\u5236\uff0c1 \u4f4d\u6570\u5b57\uff09<\/td>\n\u5c0f\u65f6<\/td>\n1\u30012\u300110\u300123<\/td>\n<\/tr>\n
\u5c0f\u65f6\uff0824 \u5c0f\u65f6\u5236\uff0c2 \u4f4d\u6570\u5b57\uff09<\/td>\n\u5475\u5475<\/td>\n01,02,10,23<\/td>\n<\/tr>\n
\u5206\u949f\uff081 \u4f4d\u6570\u5b57\uff09<\/td>\n\u4e2d\u53f7<\/td>\n1\u30012\u30013\u300125\u300130\u300158<\/td>\n<\/tr>\n
\u5206\u949f\uff082 \u4f4d\u6570\u5b57\uff09<\/td>\n\u6beb\u7c73<\/td>\n01,02,03,24,56<\/td>\n<\/tr>\n
\u7b2c\u4e8c\u4f4d\uff081 \u4f4d\u6570\u5b57\uff09<\/td>\ns<\/td>\n1\u30012\u30013\u300110\u300158<\/td>\n<\/tr>\n
\u7b2c\u4e8c\u4e2a\uff082 \u4f4d\u6570\u5b57\uff09<\/td>\nSS<\/td>\n01,02,10,45<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u89e3\u6790\u65e5\u671f<\/h2>\n
\u5728\u5904\u7406\u7528\u6237\u8f93\u5165\u6216\u6765\u81ea\u5916\u90e8\u6e90\u7684\u6570\u636e\u65f6\uff0c\u6211\u4eec\u901a\u5e38\u9700\u8981\u89e3\u6790\u5b57\u7b26\u4e32\u4e2d\u7684\u65e5\u671f\u3002 date-fns \u4e3a\u6b64\u63d0\u4f9b\u4e86 parse() \u51fd\u6570\u3002<\/p>\n
const dateString = '2023-07-15';\nconst parsedDate = dateFns.parse(dateString, 'yyyy-MM-dd', new Date());\nconsole.log(parsedDate); \/\/ Output: Date object representing July 15, 2023\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u6b64\u4ee3\u7801\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u683c\u5f0f yyyy-MM-dd \u89e3\u6790\u6765\u81ea dateString \u7684\u65e5\u671f\uff0c\u8be5\u683c\u5f0f\u5bf9\u5e94\u4e8e\u63d0\u4f9b\u7684\u65e5\u671f\u5b57\u7b26\u4e32\u3002\u7b2c\u4e09\u4e2a\u53c2\u6570\u662f\u7528\u4e8e\u8ba1\u7b97\u89e3\u6790\u65e5\u671f\u7684\u57fa\u51c6\u65e5\u671f\u3002\u5728\u672c\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528\u5f53\u524d\u65e5\u671f\u4f5c\u4e3a\u57fa\u51c6\u3002<\/p>\n
\u6dfb\u52a0\u548c\u51cf\u53bb\u65e5\u671f<\/h2>\n
\u901a\u8fc7\u6dfb\u52a0\u6216\u51cf\u53bb\u65f6\u95f4\u95f4\u9694\u6765\u64cd\u4f5c\u65e5\u671f\u662f\u65e5\u671f\u5904\u7406\u4e2d\u7684\u5e38\u89c1\u8981\u6c42\u3002 date-fns \u63d0\u4f9b\u4e86\u4e00\u7ec4\u65b9\u4fbf\u7684\u51fd\u6570\u6765\u8f7b\u677e\u6267\u884c\u8fd9\u4e9b\u64cd\u4f5c\u3002<\/p>\n
\u4ee5\u4e0b\u793a\u4f8b\u6f14\u793a\u4e86 addDays() \u548c subDays() \u51fd\u6570\uff1a<\/p>\n
const startDate = new Date(2023, 6, 15); \/\/ July 15, 2023\n\nconst fiveDaysLater = dateFns.addDays(startDate, 5);\nconsole.log(fiveDaysLater); \/\/ Output: Date object representing July 20, 2023\n\nconst threeDaysAgo = dateFns.subDays(startDate, 3);\nconsole.log(threeDaysAgo); \/\/ Output: Date object representing July 12, 2023\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4ece\u7ed9\u5b9a\u7684 2023 \u5e74 7 \u6708 15 \u65e5\u7684 startDate \u5f00\u59cb\u3002\u7136\u540e\u4f7f\u7528 addDays() \u51fd\u6570\u8ba1\u7b97 5 \u5929\u540e\u7684\u65e5\u671f\uff0c\u5e76\u4f7f\u7528 subDays( ) \u51fd\u6570\u67e5\u627e 3 \u5929\u524d\u7684\u65e5\u671f\u3002<\/p>\n
\u9664\u4e86\u6dfb\u52a0\u548c\u51cf\u53bb\u5929\u6570\u4e4b\u5916\uff0cdate-fns \u8fd8\u63d0\u4f9b\u4e86\u6dfb\u52a0\u548c\u51cf\u53bb\u6708\u4efd\u548c\u5e74\u4efd\u7684\u51fd\u6570\u3002\u6b63\u5982\u60a8\u6240\u671f\u671b\u7684\uff0c\u5b83\u4eec\u88ab\u547d\u540d\u4e3a addMonths()\u3001subMonths()\u3001addYears() \u548c subYears()\u3002<\/p>\n
\u64cd\u4f5c\u65e5\u671f\u65f6\uff0c\u5fc5\u987b\u6ce8\u610f\u8fb9\u7f18\u60c5\u51b5\u3002\u4f8b\u5982\uff0c\u5f53\u51cf\u53bb\u6708\u4efd\u6216\u5e74\u4efd\u65f6\uff0c\u7ed3\u679c\u65e5\u671f\u53ef\u80fd\u4e0d\u5b58\u5728\uff08\u4f8b\u5982 2 \u6708 30 \u65e5\uff09\uff0c\u800c date-fns \u901a\u8fc7\u8c03\u6574\u65e5\u671f\u6765\u667a\u80fd\u5904\u7406\u8fd9\u79cd\u60c5\u51b5\u3002<\/p>\n
const startDate = new Date(2023, 0, 31); \/\/ January 31, 2023\n\nconst oneMonthLater = dateFns.addMonths(startDate, 1);\nconsole.log(oneMonthLater); \/\/ Output: Date object representing February 28, 2023\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u4ece 2023 \u5e74 1 \u6708 31 \u65e5\u5f00\u59cb\uff0c\u6dfb\u52a0\u4e00\u4e2a\u6708\u7ed3\u679c\u4e3a 2023 \u5e74 2 \u6708 28 \u65e5\uff0c\u56e0\u4e3a 2 \u6708\u6ca1\u6709\u7b2c 31 \u5929\u3002<\/p>\n
\u67e5\u627e\u65e5\u671f\u4e4b\u95f4\u7684\u5dee\u5f02<\/h2>\n
JavaScript \u7684 Date \u5bf9\u8c61\u5b8c\u5168\u7f3a\u4e4f\u67e5\u627e\u4e24\u4e2a Date \u5bf9\u8c61\u4e4b\u95f4\u5dee\u5f02\u7684\u80fd\u529b\u3002\u503c\u5f97\u5e86\u5e78\u7684\u662f\uff0cdate-fns \u6709\u51e0\u4e2a\u51fd\u6570\u53ef\u4ee5\u7528\u6765\u67e5\u627e\u4e24\u4e2a Dates \u4e4b\u95f4\u7684\u5dee\u5f02\u3002\u5176\u4e2d\u4e00\u4e9b\u662f\uff1a<\/p>\n\n\n\n\n\n\n\n\n\n\n\n\n
\u51fd\u6570\u540d\u79f0<\/th>\n\u76ee\u7684<\/th>\n<\/tr>\n<\/thead>\n
differenceInMilliseconds()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u6beb\u79d2\u6570\u3002<\/td>\n<\/tr>\n
differenceInSeconds()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u79d2\u6570\u3002<\/td>\n<\/tr>\n
differenceInMinutes()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u5206\u949f\u6570\u3002<\/td>\n<\/tr>\n
differenceInHours()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u5c0f\u65f6\u6570\u3002<\/td>\n<\/tr>\n
differenceInBusinessDays()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u5de5\u4f5c\u65e5\u6570\u3002<\/td>\n<\/tr>\n
differenceInDays()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u5b8c\u6574\u5929\u6570\u3002<\/td>\n<\/tr>\n
differenceInMonths()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u6708\u6570\u3002<\/td>\n<\/tr>\n
differenceInYears()<\/td>\n\u83b7\u53d6\u7ed9\u5b9a\u65e5\u671f\u4e4b\u95f4\u7684\u5e74\u6570\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\u8fd8\u6709\u8bb8\u591a\u5176\u4ed6\u201c\u5dee\u5f02\u201d\u51fd\u6570\uff0c\u56e0\u6b64\u8bf7\u52a1\u5fc5\u68c0\u67e5\u6587\u6863\u3002<\/p>\n
\u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\uff1a<\/p>\n
const startDate = new Date(2023, 6, 15); \/\/ July 15, 2023\nconst endDate = new Date(2023, 6, 22);   \/\/ July 22, 2023\n\nconst daysDifference = dateFns.differenceInDays(endDate, startDate);\nconsole.log(daysDifference); \/\/ Output: 7\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u672c\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 <\/span>differenceInDays() \u51fd\u6570\u6765\u8ba1\u7b97 <\/span>startDate \u548c <\/span>endDate\u3002\u8f93\u51fa\u4e3a 7\u3002<\/span><\/p>\n
\u4f7f\u7528\u65f6\u533a<\/span><\/h2>\n
\u4f7f\u7528\u65f6\u533a\u53ef\u80fd\u662f\u4f7f\u7528\u65e5\u671f\u548c\u65f6\u95f4\u65f6\u6700\u4ee4\u4eba\u6cae\u4e27\u7684\u65b9\u9762\u4e4b\u4e00\uff0c\u4f46 date-fns \u4f7f\u7528 utcToZonedTime() \u548c formatDistanceToNow() \u7b49\u51fd\u6570\u4f7f\u4e4b\u53d8\u5f97\u66f4\u5bb9\u6613\u3002\u8003\u8651\u4ee5\u4e0b\u793a\u4f8b\uff1a<\/span><\/p>\n
const utcDate = new Date(Date.UTC(2023, 6, 15, 12, 0, 0));\nconst timezone = 'America\/New_York';\n\nconst zonedDate = dateFns.utcToZonedTime(utcDate, timezone);\nconsole.log(dateFns.formatDistanceToNow(zonedDate)); \/\/ Output: \"6 months\"\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u5728\u6b64\u793a\u4f8b\u4e2d\uff0c\u6211\u4eec\u4f7f\u7528 utcToZonedTime() \u51fd\u6570\u5c06 utcDate \u8f6c\u6362\u4e3a America\/New_York \u65f6\u533a\u3002\u7136\u540e\u6211\u4eec\u4f7f\u7528 formatDistanceToNow() \u51fd\u6570\u6765\u83b7\u53d6\u5206\u533a\u65e5\u671f\u548c\u5f53\u524d\u65f6\u95f4\u4e4b\u95f4\u7684\u65f6\u5dee\u3002<\/p>\n
\u5904\u7406\u65e0\u6548\u65e5\u671f<\/h2>\n
\u6211\u4eec\u6c38\u8fdc\u4e0d\u80fd\u4fe1\u4efb\u6765\u81ea\u7528\u6237\u7684\u6570\u636e\uff0c\u5e76\u4e14\u901a\u5e38\u6700\u597d\u4e0d\u8981\u4fe1\u4efb\u4efb\u4f55\u60a8\u65e0\u6cd5\u63a7\u5236\u7684\u6570\u636e\u3002\u56e0\u6b64\uff0c\u6211\u4eec\u9700\u8981\u80fd\u591f\u68c0\u67e5 Date \u662f\u5426\u6709\u6548\uff0c\u5e76\u4e14 date-fns \u4e3a\u6b64\u63d0\u4f9b\u4e86 isValid() \u51fd\u6570\u3002\u4f8b\u5982\uff1a<\/p>\n
const validDate = new Date(2023, 1, 30); \/\/ February 30, 2023 is not a valid date\nconst invalidDate = new Date(NaN);      \/\/ Invalid date\n\nconsole.log(dateFns.isValid(validDate));   \/\/ Output: true\nconsole.log(dateFns.isValid(invalidDate)); \/\/ Output: false\n<\/pre>\n
  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n
\u6b64\u793a\u4f8b\u521b\u5efa\u4e86\u6709\u6548\u548c\u65e0\u6548\u7684 Date \u5bf9\u8c61\u3002\u7136\u540e\u6211\u4eec\u4f7f\u7528 isValid() \u51fd\u6570\u6765\u786e\u5b9a\u5b83\u4eec\u662f\u5426\u662f\u6709\u6548\u65e5\u671f\u3002<\/p>\n
\u7ed3\u8bba<\/h2>\n
date-fns \u662f\u4e00\u4e2a\u529f\u80fd\u5f3a\u5927\u4e14\u6613\u4e8e\u4f7f\u7528\u7684\u5e93\uff0c\u53ef\u4ee5\u5728 JavaScript \u4e2d\u5904\u7406\u65e5\u671f\u65f6\u4e3a\u60a8\u8282\u7701\u5927\u91cf\u65f6\u95f4\u548c\u7cbe\u529b\u3002\u672c\u6559\u7a0b\u4ec5\u89e6\u53ca\u8be5\u5e93\u529f\u80fd\u7684\u8868\u9762\uff0c\u56e0\u6b64\u8bf7\u52a1\u5fc5\u901a\u8fc7\u67e5\u770b\u5b98\u65b9\u6587\u6863\u6765\u63a2\u7d22\u5176\u529f\u80fd\u548c\u53ef\u7528\u9009\u9879\u3002<\/p>\n
\u4ee5\u4e0a\u5c31\u662f\u4f7f\u7528 date-fns \u7b80\u5316\u65e5\u671f\u64cd\u4f5c\u7684\u8be6\u7ec6\u5185\u5bb9\uff0c\u66f4\u591a\u8bf7\u5173\u6ce8\u7c73\u4e91\u5176\u5b83\u76f8\u5173\u6587\u7ae0\uff01<\/p>\n","protected":false},"excerpt":{"rendered":"
\u65e5\u671f\u64cd\u4f5c\u662f JavaScript \u4e2d\u7684\u5e38\u89c1\u4efb\u52a1\uff0c\u539f\u751f Date \u5bf9\u8c61\u63d0\u4f9b\u4e86\u4e00\u4e9b\u57fa\u672c\u529f\u80fd\u3002\u4f46\u662f\uff0c\u5904\u7406\u65e5\u671f\u53ef\u80fd\u5f88\u590d\u6742\u4e14\u5bb9\u6613\u51fa\u9519\uff0c\u5e76\u4e14 Date \u7f3a\u4e4f\u6267\u884c\u8fd9\u4e9b\u5e38\u89c1\u4efb\u52a1\u6240\u9700\u7684\u529f\u80fd\u3002\u4e3a\u4e86\u4f7f\u65e5\u671f\u5904\u7406\u53d8\u5f97\u66f4\u5bb9\u6613\u3001\u66f4\u53ef\u9760\uff0c\u5f00\u53d1\u4eba\u5458\u5fc5\u987b\u4f9d\u8d56\u7b2c\u4e09\u65b9\u5e93\u3002 JavaScript \u751f\u6001\u7cfb\u7edf\u4e2d\u6709\u5f88\u591a\u53ef\u7528\u7684\uff0c\u4f46 date-fns \u8131\u9896\u800c\u51fa\uff0c\u6210\u4e3a\u4e8b\u5b9e\u4e0a\u7684\u6807\u51c6\u3002\u5b83\u662f\u4e00\u4e2a\u7528\u4e8e\u89e3\u6790\u3001\u683c\u5f0f\u5316\u548c\u64cd\u4f5c\u65e5\u671f\u7684\u8f7b\u91cf\u7ea7\u5b9e\u7528\u7a0b\u5e8f\u5e93\u3002 \u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u63a2\u7d22\u4f7f\u7528 date-fns \u7684\u57fa\u7840\u77e5\u8bc6\uff0c\u5e76\u6db5\u76d6\u5904\u7406\u65e5\u671f\u7684\u6700\u5e38\u7528\u51fd\u6570\u3002\u6700\u540e\uff0c\u60a8\u5c06\u6df1\u5165\u4e86\u89e3\u5982\u4f55\u5c06 date-fns \u5408\u5e76\u5230 JavaScript \u9879\u76ee\u4e2d\u4ee5\u6709\u6548\u5904\u7406\u65e5\u671f\u3002 \u5b89\u88c5 date-fns date-fns \u662f\u4e00\u4e2a Node \u5305\u3002\u56e0\u6b64\uff0c\u5982\u679c\u60a8\u4f7f\u7528 NPM\u3001Babel \u6216 Webpack \u7b49\u5de5\u5177\u5806\u6808\uff0c\u5219\u53ef\u4ee5\u4f7f\u7528\u4ee5\u4e0b npm \u547d\u4ee4\u5b89\u88c5 date-fns\uff1a npm install date-fns –save \u767b\u5f55\u540e\u590d\u5236 \u5982\u679c\u60a8\u5bf9\u5176\u4e2d\u4efb\u4f55\u4e00\u4e2a\u611f\u5230\u964c\u751f\uff0c\u8bf7\u4e0d\u8981\u62c5\u5fc3\uff1b\u60a8\u4e5f\u53ef\u4ee5\u5728\u6d4f\u89c8\u5668\u4e2d\u4f7f\u7528 date-fns\uff01\u53ea\u9700\u5c06\u4ee5\u4e0b <script><\/script> \u5143\u7d20\u6dfb\u52a0\u5230\u60a8\u7684 HTML \u4e2d\u5373\u53ef\uff1a <script type=”module”> import * as dateFns from ‘https:\/\/cdn.jsdelivr.net\/npm\/date-fns\/+esm’; <\/script> \u767b\u5f55\u540e\u590d\u5236 \u8fd9\u662f\u4e00\u4e2a JavaScript \u6a21\u5757\uff0c\u4ece […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[18],"tags":[],"class_list":["post-32550","post","type-post","status-publish","format-standard","hentry","category-cms"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32550","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/comments?post=32550"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/32550\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=32550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=32550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=32550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}