{"id":40,"date":"2024-03-30T19:26:55","date_gmt":"2024-03-30T11:26:55","guid":{"rendered":"http:\/\/www.shifengzhi.asia\/?p=40"},"modified":"2024-05-04T15:15:16","modified_gmt":"2024-05-04T07:15:16","slug":"%e4%bd%bf%e7%94%a8%e8%87%aa%e5%ae%9a%e4%b9%89ref%e5%ae%9e%e7%8e%b0%e9%98%b2%e6%8a%96","status":"publish","type":"post","link":"https:\/\/boki.shifengzhi.top\/?p=40","title":{"rendered":"\u4f7f\u7528\u81ea\u5b9a\u4e49Ref\u5b9e\u73b0\u9632\u6296"},"content":{"rendered":"

\u5728\u5f00\u53d1\u4e2d\u6211\u4eec\u7ecf\u5e38\u4f1a\u7528\u5230\u9632\u6296\uff0c\u8fd9\u91cc\u5148\u7ed9\u4e0d\u77e5\u9053\u9632\u6296\u7684\u540c\u5fd7\u7b80\u5355\u8bf4\u660e\u4e00\u4e0b\uff1a<\/p>\n

\u9632\u6296(debounce)\uff1an \u79d2\u540e\u5728\u6267\u884c\u8be5\u4e8b\u4ef6\uff0c\u82e5\u5728 n \u79d2\u5185\u88ab\u91cd\u590d\u89e6\u53d1\uff0c\u5219\u91cd\u65b0\u8ba1\u65f6\u3002\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\u6e38\u620f\u4e2d\u7684\u56de\u57ce\uff0c\u70b9\u51fb\u56de\u57ce\u540e\u7b49\u5f85 n \u79d2\u540e\u56de\u57ce(\u6267\u884c\u4e8b\u4ef6)\uff0c\u5982\u679c\u5728\u7b49\u5f85\u8fc7\u7a0b\u4e2d\u518d\u6b21\u70b9\u51fb\u56de\u57ce\u5219\u4f1a\u91cd\u65b0\u8fdb\u5165\u56de\u57ce\u5012\u8ba1\u65f6\u3002<\/strong><\/p>\n

\u4e0e\u6b64\u76f8\u4f3c\u7684\u8fd8\u6709\u4e00\u4e2a\u6982\u5ff5\u53eb\u505a\u8282\u6d41\uff0c\u8fd9\u91cc\u4e5f\u7b80\u5355\u8bf4\u660e\u4e00\u4e0b\uff0c\u4fbf\u4e8e\u5927\u5bb6\u533a\u5206\u7406\u89e3\u548c\u8bb0\u5fc6<\/p>\n

\u8282\u6d41(throttle)\uff1an \u79d2\u5185\u53ea\u8fd0\u884c\u4e00\u6b21\uff0c\u82e5\u5728 n \u79d2\u5185\u91cd\u590d\u89e6\u53d1\uff0c\u53ea\u6709\u4e00\u6b21\u751f\u6548\u3002\u53ef\u4ee5\u7b80\u5355\u7406\u89e3\u4e3a\u6e38\u620f\u4e2d\u7684\u6280\u80fd\u91ca\u653e\uff0c\u70b9\u51fb\u540e\u6280\u80fd\u5373\u523b\u91ca\u653e(\u6267\u884c\u4e8b\u4ef6)\uff0c\u968f\u5373\u8fdb\u5165\u51b7\u5374\u65e0\u6cd5\u91ca\u653e\u6280\u80fd\uff0c\u51b7\u5374\u7ed3\u675f\u540e\u518d\u6b21\u70b9\u51fb\u6280\u80fd\u540e\u624d\u4f1a\u91ca\u653e\u3002<\/strong><\/p>\n

\u4e86\u89e3\u4e86\u57fa\u7840\u77e5\u8bc6\u4e4b\u540e\uff0c\u6211\u4eec\u6765\u770b\u4e0b\u9762\u8fd9\u6837\u4e00\u6bb5\u4ee3\u7801\uff0c\u6211\u4eec\u8981\u5728\u5176\u4e0a\u589e\u52a0\u9632\u6296<\/p>\n

<template>\n    <div class="container">\n        <input v-model="text" \/>\n        <p class="result">{{ text }}<\/p>\n    <\/p>\n    <\/div>\n<\/template>\n<script setup>\n    import { ref } from 'vue'\n    const text = ref('')\n<\/script>\n<style scoped>\n<\/style><\/code><\/pre>\n
\u7ecf\u5178\u5b9e\u73b0<\/h3>\n
\u6211\u4eec\u65e2\u7136\u8981\u5b9e\u73b0\u9632\u6296\uff0c\u6b63\u5e38\u60c5\u51b5\u4e0b\u4e0a\u9762\u4ee3\u7801\u4e2d\u7684v-model<\/code>\u5c31\u4e0d\u80fd\u76f4\u63a5\u7528\u4e86\uff0c\u6211\u4eec\u53ef\u4ee5\u5148\u5c06\u5176\u6539\u5199\u6210\u539f\u59cb\u72b6\u6001\uff0c\u5982\u4e0b\uff1a<\/p>\n
<template>\n    <div class="container">\n        <input :value="text" @input="handleUpdate" \/>\n        <p class="result">{{ text }}<\/p>\n    <\/p>\n    <\/div>\n<\/template>\n<script setup>\n    import { ref } from 'vue'\n    const text = ref('')\n\n    const handleUpdate = (e) => {\n        text.value = e.target.value\n    }\n<\/script><\/code><\/pre>\n
\u8981\u5b9e\u73b0\u9632\u6296\uff0c\u5373\u662f\u8981\u8ba9\u6570\u636e\u7684\u53d8\u5316\u5ef6\u8fdf\u6267\u884c\uff0c\u8fd9\u6837\u6211\u4eec\u53ef\u4ee5\u8bbe\u7f6e\u4e00\u4e2a\u8ba1\u65f6\u5668\uff0c\u4f7f\u5176\u9694\u6bb5\u65f6\u95f4\u518d\u53bb\u6539\u53d8\u6570\u636e<\/p>\n
<template>\n    <div class="container">\n        <input :value="text" @input="handleUpdate" \/>\n        <p class="result">{{ text }}<\/p>\n    <\/p>\n    <\/div>\n<\/template>\n<script setup>\n    import { ref } from 'vue'\n    const text = ref('')\n    let timer\n    const handleUpdate = (e) => {\n        clearTimeout(timer)\n        timer = setTimeout(() => {\n            text.value = e.target.value\n        }, 1000)\n    }\n<\/script><\/code><\/pre>\n
\u4e0a\u9762\u57fa\u672c\u5b9e\u73b0\u4e86\u9632\u6296\uff0c\u4f46\u662f\u6bcf\u6b21\u90fd\u8981\u5199\u90a3\u4e48\u591a\u5e76\u4e0d\u4f18\u96c5\uff0c\u6240\u4ee5\u6211\u4eec\u5c06\u5176\u5c01\u88c5\u4e3a\u4e00\u4e2a\u9632\u6296\u51fd\u6570\u653e\u5728debounce.js<\/code>\u6587\u4ef6\u4e2d\uff0c\u5e76\u5728\u539f\u6765\u7684\u6587\u4ef6\u4e2d\u4f7f\u7528\u5b83<\/p>\n
\/\/ debounce.js\nexport function debounce(func, delay = 1000){\n    let timer\n    return function(...args){\n        clearTimeout(timer)\n        timer = setTimeout(() => {\n            func.call(this, ...args)\n        }, delay)\n    }\n}<\/code><\/pre>\n
<template>\n    <div class="container">\n        <input :value="text" @input="handleUpdate" \/>\n        <p class="result">{{ text }}<\/p>\n    <\/p>\n    <\/div>\n<\/template>\n<script setup>\n    import { ref } from 'vue'\n    import { debounce } from '.\/debounce'\n    const text = ref('')\n    const update = (e) => (text.value = e.target.value)\n    const handleUpdate = debounce(update, 1000)\n<\/script><\/code><\/pre>\n
\u8fd9\u6837\u6211\u4eec\u5c31\u8f83\u4e3a\u4f18\u96c5\u5730\u5b9e\u73b0\u4e86\u9632\u6296\uff0c\u4e0d\u8fc7\u6709\u6ca1\u6709\u4e00\u79cd\u65b9\u6cd5\u53ef\u4ee5\u4f7f\u6211\u4eec\u4f7f\u7528\u6700\u521d\u7684v-model<\/code>\u7684\u60c5\u51b5\u4e0b\u4e5f\u80fd\u5b9e\u73b0\u9632\u6296\u5462\uff1f\u4e0b\u9762\u6211\u4eec\u8fdb\u5165\u672c\u6587\u7684\u6b63\u9898\uff0c\u4f7f\u7528\u81ea\u5b9a\u4e49Ref\u5b9e\u73b0\u9632\u6296<\/p>\n
\u81ea\u5b9a\u4e49Ref\u5b9e\u73b0\u9632\u6296<\/h3>\n
\u5728\u8fd9\u4e4b\u524d\uff0c\u6211\u4eec\u5148\u6765\u7b80\u5355\u4e86\u89e3\u4e00\u4e0b\uff0cVue\u4e2d\u7684ref()\u5728\u6e90\u7801\u4e2d\u5927\u6982\u662f\u600e\u6837\u7684\u5f62\u5f0f\uff0c\u76f4\u63a5\u770b\u4ee3\u7801\u6bd4\u6587\u5b57\u63cf\u8ff0\u66f4\u6e05\u6670\uff0c\u6211\u4eec\u6765\u7b80\u5355\u63cf\u8ff0\u4e00\u4e0bref()\u7684\u90e8\u5206\u5927\u6846<\/p>\n
function ref(value){\n    {\n        get(){\n            \/\/ \u4f9d\u8d56\u6536\u96c6 track()\n            return value\n        },\n        set(val){\n            \/\/ \u6d3e\u53d1\u66f4\u65b0 trigger()\n            value = val\n        }\n    }\n}<\/code><\/pre>\n
\u56e0\u4e3aVue\u662f\u54cd\u5e94\u5f0f\u7684\uff0c\u6240\u4ee5\u9700\u8981track()\u548ctrigger()\u8fdb\u884c\u4f9d\u8d56\u6536\u96c6\u548c\u6d3e\u53d1\u66f4\u65b0\u5f62\u6210\u54cd\u5e94\u5f0f\uff0c\u6709\u70b9\u50cf\u53d1\u5e03\u8ba2\u9605\u6a21\u5f0f\u3002\u5728\u4e86\u89e3\u4e86\u4ee5\u540e\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u7740\u624b\u5199\u4e00\u4e2a\u81ea\u5df1\u7684ref()\u51fd\u6570\u4e86\uff0c\u5c24\u5927\u63d0\u524d\u8003\u8651\u5230\u4e86\u8fd9\u70b9\uff0c\u4e3a\u6211\u4eec\u63d0\u4f9b\u4e86customRef<\/code>\u65b9\u4fbf\u6211\u4eec\u6839\u636e\u9700\u8981\u81ea\u5b9a\u4e49ref\u3002\u4e0b\u9762\u6211\u4eec\u5c31\u5229\u7528customRef<\/code>\u6765\u5b9e\u73b0\u9632\u6296\uff0c\u4e3a\u65b9\u4fbf\u590d\u7528\u6211\u4eec\u5c06\u4ee3\u7801\u5c01\u88c5\u5728debounceRef.js<\/code>\u4e2d\uff0c\u5e76\u5728\u6700\u521d\u7684\u6587\u4ef6\u4e2d\u8c03\u7528<\/p>\n
\/\/ debounceRef.js\nimport { customRef } from 'vue'\nexport function debounceRef(value){\n    return customRef((track, trigger) => {\n        return {\n            get(){\n                track() \/\/ \u4f9d\u8d56\u6536\u96c6\n                return value\n            },\n            set(val) {\n                value = val;\n                trigger(); \/\/ \u6d3e\u53d1\u66f4\u65b0\n            }\n        }\n    })\n}<\/code><\/pre>\n
<template>\n    <div class="container">\n        <input v-model="text" \/>\n        <p class="result">{{ text }}<\/p>\n    <\/p>\n    <\/div>\n<\/template>\n<script setup>\n    import { debounceRef } from '.\/debounceRef'\n    const text = debounceRef('')\n<\/script><\/code><\/pre>\n
\u53ef\u4ee5\u6d4b\u8bd5\u4e00\u4e0b\u6548\u679c\uff0c\u4e0e\u4f7f\u7528Vue\u81ea\u8eab\u7684ref()\u51fd\u6570\u5b9e\u73b0\u7684\u6548\u679c\u662f\u76f8\u540c\u7684\u3002\u5230\u6b64\u5c31\u5f88\u7b80\u5355\u4e86\uff0c\u6211\u4eec\u53ea\u9700\u8981\u5982\u6cd5\u70ae\u5236\uff0c\u4f7f\u7528\u5b9a\u65f6\u5668\u63a7\u5236\u6d3e\u53d1\u66f4\u65b0\u5373\u53ef\u8fbe\u5230\u9632\u6296\u7684\u6548\u679c\uff0c\u5982\u4e0b\uff1a<\/p>\n
\/\/ debounceRef.js\nimport { customRef } from 'vue'\nexport function debounceRef(value, delay = 1000){\n    let timer\n    return customRef((track, trigger) => {\n        return {\n            get(){\n                track() \/\/ \u4f9d\u8d56\u6536\u96c6\n                return value\n            },\n            set(val) {\n                clearTimeout(timer)\n                timer = setTimeout(() => {\n                    value = val;\n                    trigger(); \/\/ \u6d3e\u53d1\u66f4\u65b0\n                }, delay)\n            }\n        }\n    })\n}<\/code><\/pre>\n
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\u771f\u662f \u67af\u85e4\u8001\u6811\u660f\u9e26\uff0c\u4ee3\u7801\u9ad8\u7ea7\u4f18\u96c5~ \u30fe(\u2267\u25bd\u2266*)o<\/p>\n","protected":false},"excerpt":{"rendered":"
\u5728\u5f00\u53d1\u4e2d\u6211\u4eec\u7ecf\u5e38\u4f1a\u7528\u5230\u9632\u6296\uff0c\u8fd9\u91cc\u5148\u7ed9\u4e0d\u77e5\u9053\u9632\u6296\u7684\u540c\u5fd7\u7b80\u5355\u8bf4\u660e\u4e00\u4e0b\uff1a \u9632\u6296(debounce)\uff1an \u79d2\u540e\u5728\u6267\u884c\u8be5 […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[5],"tags":[24,6],"class_list":["post-40","post","type-post","status-publish","format-standard","hentry","category-5","tag-vue","tag-6"],"_links":{"self":[{"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=\/wp\/v2\/posts\/40","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=40"}],"version-history":[{"count":1,"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=\/wp\/v2\/posts\/40\/revisions"}],"predecessor-version":[{"id":41,"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=\/wp\/v2\/posts\/40\/revisions\/41"}],"wp:attachment":[{"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=40"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=40"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/boki.shifengzhi.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=40"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}