{"id":1002,"date":"2023-03-12T08:55:06","date_gmt":"2023-03-12T00:55:06","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1002"},"modified":"2023-04-29T13:18:51","modified_gmt":"2023-04-29T05:18:51","slug":"vue-filter","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/03\/12\/vue-filter\/","title":{"rendered":"Vue\u8fc7\u6ee4\u5668"},"content":{"rendered":"

\u4f7f\u7528\u8fc7\u6ee4\u5668<\/h3>\n

Vue.js \u5141\u8bb8\u81ea\u5b9a\u4e49\u8fc7\u6ee4\u5668\uff0c\u53ef\u88ab\u7528\u4e8e\u4e00\u4e9b\u5e38\u89c1\u7684\u6587\u672c\u683c\u5f0f\u5316\u3002\u8fc7\u6ee4\u5668\u53ef\u4ee5\u7528\u5728\u4e24\u4e2a\u5730\u65b9\uff1a\u53cc\u82b1\u62ec\u53f7\u63d2\u503c\u548c v-bind \u8868\u8fbe\u5f0f (\u540e\u8005\u4ece 2.1.0+ \u5f00\u59cb\u652f\u6301)\u3002\u8fc7\u6ee4\u5668\u5e94\u8be5\u88ab\u6dfb\u52a0\u5728 JavaScript \u8868\u8fbe\u5f0f\u7684\u5c3e\u90e8\uff0c\u7531\u201c\u7ba1\u9053\u201d\u7b26\u53f7\u6307\u793a\uff1a<\/p>\n

\u53c2\u8003\uff1ahttps:\/\/cn.vuejs.org\/v2\/guide\/filters.html<\/a><\/p>\n

<\/p>\n

<!-- \u5728\u53cc\u82b1\u62ec\u53f7\u4e2d -->\n{{ message | capitalize }}\n\n<!-- \u5728 `v-bind` \u4e2d -->\n<div v-bind:id="rawId | formatId"><\/div><\/code><\/pre>\n
\u5b9a\u4e49\u8fc7\u6ee4\u5668<\/h3>\n
\u53ef\u4ee5\u5728\u4e00\u4e2a\u7ec4\u4ef6\u7684\u9009\u9879\u4e2d\u5b9a\u4e49\u672c\u5730\u7684\u8fc7\u6ee4\u5668\uff1a<\/p>\n
filters: {\n  capitalize: function (value) {\n    if (!value) return ''\n    value = value.toString()\n    return value.charAt(0).toUpperCase() + value.slice(1)\n  }\n}<\/code><\/pre>\n
\u6216\u8005\u5728\u521b\u5efa Vue \u5b9e\u4f8b\u4e4b\u524d\u5168\u5c40\u5b9a\u4e49\u8fc7\u6ee4\u5668\uff1a<\/p>\n
Vue.filter('capitalize', function (value) {\n  if (!value) return ''\n  value = value.toString()\n  return value.charAt(0).toUpperCase() + value.slice(1)\n})\n\nnew Vue({\n  \/\/ ...\n})<\/code><\/pre>\n
\u8fc7\u6ee4\u5668\u51fd\u6570\u603b\u63a5\u6536\u8868\u8fbe\u5f0f\u7684\u503c (\u4e4b\u524d\u7684\u64cd\u4f5c\u94fe\u7684\u7ed3\u679c) \u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\u3002\u5728\u4e0a\u8ff0\u4f8b\u5b50\u4e2d\uff0ccapitalize \u8fc7\u6ee4\u5668\u51fd\u6570\u5c06\u4f1a\u6536\u5230 message \u7684\u503c\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\u3002<\/p>\n
\u8fc7\u6ee4\u5668\u4e32\u8054<\/h3>\n
\u8fc7\u6ee4\u5668\u53ef\u4ee5\u4e32\u8054\uff1a<\/p>\n
{{ message | filterA | filterB }}<\/code><\/pre>\n
\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0cfilterA \u88ab\u5b9a\u4e49\u4e3a\u63a5\u6536\u5355\u4e2a\u53c2\u6570\u7684\u8fc7\u6ee4\u5668\u51fd\u6570\uff0c\u8868\u8fbe\u5f0f message \u7684\u503c\u5c06\u4f5c\u4e3a\u53c2\u6570\u4f20\u5165\u5230\u51fd\u6570\u4e2d\u3002\u7136\u540e\u7ee7\u7eed\u8c03\u7528\u540c\u6837\u88ab\u5b9a\u4e49\u4e3a\u63a5\u6536\u5355\u4e2a\u53c2\u6570\u7684\u8fc7\u6ee4\u5668\u51fd\u6570 filterB\uff0c\u5c06 filterA \u7684\u7ed3\u679c\u4f20\u9012\u5230 filterB \u4e2d\u3002<\/p>\n
\u8fc7\u6ee4\u5668\u662f JavaScript \u51fd\u6570\uff0c\u56e0\u6b64\u53ef\u4ee5\u63a5\u6536\u53c2\u6570\uff1a<\/p>\n
{{ message | filterA('arg1', arg2) }}<\/code><\/pre>\n
\u8fd9\u91cc\uff0cfilterA \u88ab\u5b9a\u4e49\u4e3a\u63a5\u6536\u4e09\u4e2a\u53c2\u6570\u7684\u8fc7\u6ee4\u5668\u51fd\u6570\u3002\u5176\u4e2d message \u7684\u503c\u4f5c\u4e3a\u7b2c\u4e00\u4e2a\u53c2\u6570\uff0c\u666e\u901a\u5b57\u7b26\u4e32 ‘arg1’ \u4f5c\u4e3a\u7b2c\u4e8c\u4e2a\u53c2\u6570\uff0c\u8868\u8fbe\u5f0f arg2 \u7684\u503c\u4f5c\u4e3a\u7b2c\u4e09\u4e2a\u53c2\u6570\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"
\u4f7f\u7528\u8fc7\u6ee4\u5668 Vue.js \u5141\u8bb8\u81ea\u5b9a\u4e49\u8fc7\u6ee4\u5668\uff0c\u53ef\u88ab\u7528\u4e8e\u4e00\u4e9b\u5e38\u89c1\u7684\u6587\u672c\u683c\u5f0f\u5316\u3002\u8fc7\u6ee4\u5668\u53ef\u4ee5\u7528\u5728\u4e24\u4e2a\u5730\u65b9\uff1a\u53cc\u82b1\u62ec\u53f7\u63d2\u503c […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[35],"tags":[],"class_list":["post-1002","post","type-post","status-publish","format-standard","hentry","category-vue"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1002","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1002"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1002\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1002"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1002"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1002"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}