{"id":3240,"date":"2024-11-10T13:06:49","date_gmt":"2024-11-10T05:06:49","guid":{"rendered":"https:\/\/fwq.ai\/blog\/3240\/"},"modified":"2024-11-10T13:06:49","modified_gmt":"2024-11-10T05:06:49","slug":"%e5%a6%82%e4%bd%95%e7%94%a8js%e5%ae%9e%e7%8e%b0%e5%88%86%e9%a1%b5","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/3240\/","title":{"rendered":"\u5982\u4f55\u7528js\u5b9e\u73b0\u5206\u9875"},"content":{"rendered":"<blockquote><p>\n  \u5728 javascript \u4e2d\u5b9e\u73b0\u5206\u9875\u9700\u8981\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u5b9a\u4e49\u5305\u542b\u6240\u6709\u6570\u636e\u7684\u6570\u7ec4\uff1b\u8bbe\u5b9a\u6bcf\u9875\u663e\u793a\u7684\u6570\u636e\u6570\u91cf\uff0c\u5373\u5206\u9875\u5927\u5c0f\uff1b\u8ba1\u7b97\u6240\u9700\u9875\u6570\uff1b\u521b\u5efa\u4e00\u4e2a\u6267\u884c\u5206\u9875\u7684\u51fd\u6570\uff1b\u8c03\u7528\u5206\u9875\u51fd\u6570\u83b7\u53d6\u7279\u5b9a\u9875\u9762\u7684\u6570\u636e\uff1b\u5728 ui \u4e2d\u663e\u793a\u5206\u9875\u6570\u636e\u3002\n<\/p><\/blockquote>\n<p><img decoding=\"async\" src=\"https:\/\/img.php.cn\/upload\/article\/202411\/08\/2024110808065891882.jpg\" class=\"aligncenter\" title=\"\u5982\u4f55\u7528js\u5b9e\u73b0\u5206\u9875\u63d2\u56fe\" alt=\"\u5982\u4f55\u7528js\u5b9e\u73b0\u5206\u9875\u63d2\u56fe\" \/><\/p>\n<p><strong>\u5982\u4f55\u5728 JavaScript \u4e2d\u5b9e\u73b0\u5206\u9875<\/strong><\/p>\n<p><strong>\u7b80\u4ecb<\/strong><\/p>\n<p>\u5206\u9875\u662f\u4e00\u79cd\u5c06\u5927\u6570\u636e\u96c6\u5212\u5206\u4e3a\u66f4\u5c0f\u7684\u3001\u66f4\u6613\u4e8e\u7ba1\u7406\u7684\u90e8\u5206\u7684\u6280\u672f\u3002\u5728 JavaScript \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5229\u7528\u6570\u7ec4\u548c\u64cd\u4f5c\u7b26\u6765\u5b9e\u73b0\u5206\u9875\u3002<\/p>\n<p><strong>\u5b9e\u73b0\u6b65\u9aa4<\/strong><\/p>\n<p><strong>1. \u5b9a\u4e49\u6570\u7ec4<\/strong><\/p>\n<p>\u521b\u5efa\u5305\u542b\u6240\u6709\u6570\u636e\u7684\u6570\u7ec4\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>const data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>2. \u8ba1\u7b97\u5206\u9875\u5927\u5c0f<\/strong><\/p>\n<p>\u786e\u5b9a\u6bcf\u4e00\u9875\u663e\u793a\u7684\u6570\u636e\u9879\u6570\u91cf\uff0c\u79f0\u4e3a\u5206\u9875\u5927\u5c0f\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>const pageSize = 3;<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>3. \u8ba1\u7b97\u9875\u6570<\/strong><\/p>\n<p>\u4f7f\u7528\u6570\u7ec4\u957f\u5ea6\u548c\u5206\u9875\u5927\u5c0f\u8ba1\u7b97\u6240\u9700\u7684\u9875\u6570\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>const pagesCount = Math.ceil(data.length \/ pageSize);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>4. \u521b\u5efa\u5206\u9875\u51fd\u6570<\/strong><\/p>\n<p>\u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6765\u6267\u884c\u5206\u9875\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>function paginate(array, pageNumber, pageSize) {\n  \/\/ \u6821\u9a8c\u8f93\u5165\n  if (pageNumber &lt; 1 || pageNumber &gt; pagesCount) {\n    return [];\n  }\n\n  \/\/ \u8ba1\u7b97\u8d77\u59cb\u7d22\u5f15\n  const startIndex = (pageNumber - 1) * pageSize;\n\n  \/\/ \u8fd4\u56de\u5206\u9875\u7ed3\u679c\n  return array.slice(startIndex, startIndex + pageSize);\n}<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>5. \u8c03\u7528\u5206\u9875\u51fd\u6570<\/strong><\/p>\n<p>\u8c03\u7528\u5206\u9875\u51fd\u6570\u6765\u83b7\u53d6\u7279\u5b9a\u9875\u9762\u7684\u6570\u636e\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>const currentPageData = paginate(data, 2, pageSize);<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p><strong>6. \u663e\u793a\u5206\u9875\u6570\u636e<\/strong><\/p>\n<p>\u6839\u636e\u9700\u8981\u5728 UI \u4e2d\u663e\u793a\u5206\u9875\u6570\u636e\u3002<\/p>\n<p><strong>\u793a\u4f8b<\/strong><\/p>\n<p>\u5047\u8bbe\u6211\u4eec\u6709\u4e00\u4e2a\u5305\u542b 10 \u4e2a\u6570\u636e\u7684\u6570\u7ec4\uff0c\u5206\u9875\u5927\u5c0f\u4e3a 3\uff0c\u5219\u4ee3\u7801\u5982\u4e0b\uff1a<\/p>\n<pre>\/\/ \u6570\u636e\u6570\u7ec4\nconst data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10];\n\n\/\/ \u5206\u9875\u5927\u5c0f\nconst pageSize = 3;\n\n\/\/ \u5206\u9875\u6240\u9700\u9875\u6570\nconst pagesCount = Math.ceil(data.length \/ pageSize);\n\n\/\/ \u5206\u9875\u51fd\u6570\nfunction paginate(array, pageNumber, pageSize) {\n  const startIndex = (pageNumber - 1) * pageSize;\n  return array.slice(startIndex, startIndex + pageSize);\n}\n\n\/\/ \u83b7\u53d6\u7b2c\u4e8c\u9875\u6570\u636e\nconst currentPageData = paginate(data, 2, pageSize);\n\n\/\/ \u5728 UI \u4e2d\u663e\u793a\u6570\u636e\nconsole.log(currentPageData); \/\/ [4, 5, 6]<\/pre>\n<p>  \u767b\u5f55\u540e\u590d\u5236   <\/p>\n<p>\u4ee5\u4e0a\u5c31\u662f\u5982\u4f55\u7528js\u5b9e\u73b0\u5206\u9875\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":"<p>\u5728 javascript \u4e2d\u5b9e\u73b0\u5206\u9875\u9700\u8981\u4ee5\u4e0b\u6b65\u9aa4\uff1a\u5b9a\u4e49\u5305\u542b\u6240\u6709\u6570\u636e\u7684\u6570\u7ec4\uff1b\u8bbe\u5b9a\u6bcf\u9875\u663e\u793a\u7684\u6570\u636e\u6570\u91cf\uff0c\u5373\u5206\u9875\u5927\u5c0f\uff1b\u8ba1\u7b97\u6240\u9700\u9875\u6570\uff1b\u521b\u5efa\u4e00\u4e2a\u6267\u884c\u5206\u9875\u7684\u51fd\u6570\uff1b\u8c03\u7528\u5206\u9875\u51fd\u6570\u83b7\u53d6\u7279\u5b9a\u9875\u9762\u7684\u6570\u636e\uff1b\u5728 ui \u4e2d\u663e\u793a\u5206\u9875\u6570\u636e\u3002 \u5982\u4f55\u5728 JavaScript \u4e2d\u5b9e\u73b0\u5206\u9875 \u7b80\u4ecb \u5206\u9875\u662f\u4e00\u79cd\u5c06\u5927\u6570\u636e\u96c6\u5212\u5206\u4e3a\u66f4\u5c0f\u7684\u3001\u66f4\u6613\u4e8e\u7ba1\u7406\u7684\u90e8\u5206\u7684\u6280\u672f\u3002\u5728 JavaScript \u4e2d\uff0c\u53ef\u4ee5\u901a\u8fc7\u5229\u7528\u6570\u7ec4\u548c\u64cd\u4f5c\u7b26\u6765\u5b9e\u73b0\u5206\u9875\u3002 \u5b9e\u73b0\u6b65\u9aa4 1. \u5b9a\u4e49\u6570\u7ec4 \u521b\u5efa\u5305\u542b\u6240\u6709\u6570\u636e\u7684\u6570\u7ec4\uff0c\u4f8b\u5982\uff1a const data = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10]; \u767b\u5f55\u540e\u590d\u5236 2. \u8ba1\u7b97\u5206\u9875\u5927\u5c0f \u786e\u5b9a\u6bcf\u4e00\u9875\u663e\u793a\u7684\u6570\u636e\u9879\u6570\u91cf\uff0c\u79f0\u4e3a\u5206\u9875\u5927\u5c0f\uff0c\u4f8b\u5982\uff1a const pageSize = 3; \u767b\u5f55\u540e\u590d\u5236 3. \u8ba1\u7b97\u9875\u6570 \u4f7f\u7528\u6570\u7ec4\u957f\u5ea6\u548c\u5206\u9875\u5927\u5c0f\u8ba1\u7b97\u6240\u9700\u7684\u9875\u6570\uff0c\u4f8b\u5982\uff1a const pagesCount = Math.ceil(data.length \/ pageSize); \u767b\u5f55\u540e\u590d\u5236 4. \u521b\u5efa\u5206\u9875\u51fd\u6570 \u5b9a\u4e49\u4e00\u4e2a\u51fd\u6570\u6765\u6267\u884c\u5206\u9875\uff0c\u4f8b\u5982\uff1a function paginate(array, pageNumber, pageSize) [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[16],"tags":[],"class_list":["post-3240","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3240","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=3240"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/3240\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=3240"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=3240"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=3240"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}