{"id":52745,"date":"2024-12-03T11:35:14","date_gmt":"2024-12-03T03:35:14","guid":{"rendered":"https:\/\/fwq.ai\/blog\/52745\/"},"modified":"2024-12-03T11:35:14","modified_gmt":"2024-12-03T03:35:14","slug":"javascript-%e5%87%bd%e6%95%b0%e4%bc%a0%e5%8f%82%ef%bc%9a%e5%a6%82%e4%bd%95%e6%8c%87%e5%ae%9a%e7%89%b9%e5%ae%9a%e5%8f%82%e6%95%b0%ef%bc%9f-2","status":"publish","type":"post","link":"https:\/\/fwq.ai\/blog\/52745\/","title":{"rendered":"JavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f"},"content":{"rendered":"<p><b><\/b>     <\/p>\n<h1>JavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f<\/h1>\n<p>\u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aJavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f\u300b\uff0c\u8986\u76d6\u4e86\u6587\u7ae0\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.17golang.com\/uploads\/20241123\/173232437067412c122303f.jpg\" class=\"aligncenter\" title=\"JavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f\u63d2\u56fe\" alt=\"JavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f\u63d2\u56fe\" \/><\/p>\n<p><strong>\u6307\u5b9a javascript \u51fd\u6570\u4f20\u53c2\u7684\u53ef\u80fd\u65b9\u6cd5<\/strong><\/p>\n<p>\u5728 javascript \u4e2d\uff0c\u51fd\u6570\u53ef\u4ee5\u901a\u8fc7\u5404\u79cd\u65b9\u5f0f\u6307\u5b9a\u4f20\u53c2\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u4f4d\u7f6e\u53c2\u6570\uff1a<\/strong>\u51fd\u6570\u6839\u636e\u53c2\u6570\u5728\u51fd\u6570\u5b9a\u4e49\u4e2d\u7684\u4f4d\u7f6e\u8fdb\u884c\u8c03\u7528\u3002<\/p>\n<pre>function fun1(a, b) {\nconsole.log(`a: ${a}, b: ${b}`);\n}\n\nfun1(1, \"hello\"); \/\/ \u8f93\u51fa\uff1aa: 1, b: hello<\/pre>\n<\/li>\n<li>\n<p><strong>\u5177\u540d\u53c2\u6570\uff1a<\/strong>\u53c2\u6570\u5728\u51fd\u6570\u8c03\u7528\u65f6\u4f7f\u7528\u540d\u79f0\u663e\u5f0f\u6307\u5b9a\u3002<\/p>\n<pre>function fun2({ a, b }) {\nconsole.log(`a: ${a}, b: ${b}`);\n}\n\nfun2({ a: 2, b: \"world\" }); \/\/ \u8f93\u51fa\uff1aa: 2, b: world<\/pre>\n<\/li>\n<li>\n<p><strong>\u9ed8\u8ba4\u53c2\u6570\uff1a<\/strong>\u4e3a\u53c2\u6570\u8bbe\u7f6e\u9ed8\u8ba4\u503c\uff0c\u5982\u679c\u5728\u8c03\u7528\u65f6\u672a\u63d0\u4f9b\u5219\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002<\/p>\n<pre>function fun3(a = 1, b = \"default\") {\nconsole.log(`a: ${a}, b: ${b}`);\n}\n\nfun3(); \/\/ \u8f93\u51fa\uff1aa: 1, b: default\nfun3(3, \"updated\"); \/\/ \u8f93\u51fa\uff1aa: 3, b: updated<\/pre>\n<\/li>\n<\/ul>\n<p>\u7136\u800c\uff0c<strong>javascript \u6ca1\u6709\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\u7684\u8bed\u6cd5<\/strong>\uff0c\u4f8b\u5982\uff1a<\/p>\n<pre>function fun1(a = \"1\", b = \"2\") {\n  \/\/ \u65e0\u6cd5\u6307\u5b9a\u8c03\u7528\u65f6\u53ea\u4f20\u5165 b \u800c\u5ffd\u7565 a\n}<\/pre>\n<p>\u8981\u5b9e\u73b0\u7c7b\u4f3c\u7684\u6548\u679c\uff0c\u53ef\u4ee5\u91c7\u7528\u4ee5\u4e0b\u65b9\u5f0f\uff1a<\/p>\n<ul>\n<li>\n<p><strong>\u4f7f\u7528\u5bf9\u8c61\u53c2\u6570\uff1a<\/strong>\u5c06\u53c2\u6570\u5305\u88c5\u5728\u5bf9\u8c61\u4e2d\u5e76\u5c06\u5176\u4f5c\u4e3a\u5355\u4e00\u53c2\u6570\u4f20\u9012\u3002<\/p>\n<pre>function fun1(params) {\nconst { a, b } = params;\n\/\/ ...\u5176\u4f59\u4ee3\u7801\n}\n\nfun1({ b: \"123\" }); \/\/ a: undefined, b: 123<\/pre>\n<\/li>\n<\/ul>\n<p>\u7ec8\u4e8e\u4ecb\u7ecd\u5b8c\u5566\uff01\u5c0f\u4f19\u4f34\u4eec\uff0c\u8fd9\u7bc7\u5173\u4e8e\u300aJavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f\u300b\u7684\u4ecb\u7ecd\u5e94\u8be5\u8ba9\u4f60\u6536\u83b7\u591a\u591a\u4e86\u5427\uff01\u6b22\u8fce\u5927\u5bb6\u6536\u85cf\u6216\u5206\u4eab\u7ed9\u66f4\u591a\u9700\u8981\u5b66\u4e60\u7684\u670b\u53cb\u5427~\u7c73\u4e91\u516c\u4f17\u53f7\u4e5f\u4f1a\u53d1\u5e03\u6587\u7ae0\u76f8\u5173\u77e5\u8bc6\uff0c\u5feb\u6765\u5173\u6ce8\u5427\uff01<\/p>\n<dl>\n<dt><\/dt>\n<dd>\n   \u5982\u4f55\u521b\u5efa\u4e91\u6784\u5efa\u4ee5\u5141\u8bb8 Docker \u4ece Artifact Registry \u4e0b\u8f7d Python \u5305\n <\/dd>\n<\/dl>\n","protected":false},"excerpt":{"rendered":"<p>JavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f \u672c\u7bc7\u6587\u7ae0\u7ed9\u5927\u5bb6\u5206\u4eab\u300aJavaScript \u51fd\u6570\u4f20\u53c2\uff1a\u5982\u4f55\u6307\u5b9a\u7279\u5b9a\u53c2\u6570\uff1f\u300b\uff0c\u8986\u76d6\u4e86\u6587\u7ae0\u7684\u5e38\u89c1\u57fa\u7840\u77e5\u8bc6\uff0c\u5176\u5b9e\u4e00\u4e2a\u8bed\u8a00\u7684\u5168\u90e8\u77e5\u8bc6\u70b9\u4e00\u7bc7\u6587\u7ae0\u662f\u4e0d\u53ef\u80fd\u8bf4\u5b8c\u7684\uff0c\u4f46\u5e0c\u671b\u901a\u8fc7\u8fd9\u4e9b\u95ee\u9898\uff0c\u8ba9\u8bfb\u8005\u5bf9\u81ea\u5df1\u7684\u638c\u63e1\u7a0b\u5ea6\u6709\u4e00\u5b9a\u7684\u8ba4\u8bc6(B \u6570)\uff0c\u4ece\u800c\u5f25\u8865\u81ea\u5df1\u7684\u4e0d\u8db3\uff0c\u66f4\u597d\u7684\u638c\u63e1\u5b83\u3002 \u6307\u5b9a javascript \u51fd\u6570\u4f20\u53c2\u7684\u53ef\u80fd\u65b9\u6cd5 \u5728 javascript \u4e2d\uff0c\u51fd\u6570\u53ef\u4ee5\u901a\u8fc7\u5404\u79cd\u65b9\u5f0f\u6307\u5b9a\u4f20\u53c2\uff1a \u4f4d\u7f6e\u53c2\u6570\uff1a\u51fd\u6570\u6839\u636e\u53c2\u6570\u5728\u51fd\u6570\u5b9a\u4e49\u4e2d\u7684\u4f4d\u7f6e\u8fdb\u884c\u8c03\u7528\u3002 function fun1(a, b) { console.log(`a: ${a}, b: ${b}`); } fun1(1, &#8220;hello&#8221;); \/\/ \u8f93\u51fa\uff1aa: 1, b: hello \u5177\u540d\u53c2\u6570\uff1a\u53c2\u6570\u5728\u51fd\u6570\u8c03\u7528\u65f6\u4f7f\u7528\u540d\u79f0\u663e\u5f0f\u6307\u5b9a\u3002 function fun2({ a, b }) { console.log(`a: ${a}, b: ${b}`); } fun2({ a: 2, b: &#8220;world&#8221; }); \/\/ \u8f93\u51fa\uff1aa: 2, b: world \u9ed8\u8ba4\u53c2\u6570\uff1a\u4e3a\u53c2\u6570\u8bbe\u7f6e\u9ed8\u8ba4\u503c\uff0c\u5982\u679c\u5728\u8c03\u7528\u65f6\u672a\u63d0\u4f9b\u5219\u4f7f\u7528\u9ed8\u8ba4\u503c\u3002 function fun3(a = [&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-52745","post","type-post","status-publish","format-standard","hentry","category-16"],"_links":{"self":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52745","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=52745"}],"version-history":[{"count":0,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/posts\/52745\/revisions"}],"wp:attachment":[{"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/media?parent=52745"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/categories?post=52745"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/fwq.ai\/blog\/wp-json\/wp\/v2\/tags?post=52745"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}