{"id":4928,"date":"2019-11-09T19:37:10","date_gmt":"2019-11-09T10:37:10","guid":{"rendered":"https:\/\/blog.capilano-fw.com\/?p=4928"},"modified":"2019-11-09T19:37:10","modified_gmt":"2019-11-09T10:37:10","slug":"%e3%80%90vue%e3%80%91%e5%9b%9e%e7%b7%9a%e9%80%9f%e5%ba%a6%e3%81%ab%e3%82%88%e3%81%a3%e3%81%a6%e7%94%bb%e5%83%8f%e3%82%b5%e3%82%a4%e3%82%ba%e3%82%92%e5%88%87%e3%82%8a%e6%9b%bf%e3%81%88%e3%82%8b","status":"publish","type":"post","link":"https:\/\/blog.capilano-fw.com\/?p=4928","title":{"rendered":"\u3010Vue\u3011\u56de\u7dda\u901f\u5ea6\u306b\u3088\u3063\u3066\u753b\u50cf\u30b5\u30a4\u30ba\u3092\u5207\u308a\u66ff\u3048\u308b"},"content":{"rendered":"

\u3055\u3066\u3055\u3066\u3001\u6700\u8fd1\u7279\u306b\u3067\u3059\u304c\u300c\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u300d<\/strong>\u306b\u8208\u5473\u304c\u3067\u3066\u304d\u3066\u3044\u308d\u3044\u308d\u3068\u52c9\u5f37\u3092\u3057\u3066\u3044\u307e\u3059\u3002\u305d\u3057\u3066\u3001\u305d\u3093\u306a\u4e2d\u300c\u3084\u3063\u3071\u308aGoogle<\/code>\u306f\u3059\u3054\u3044\u306a\u300d\u3068\u601d\u3046\u7d4c\u9a13\u3092\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u3042\u308b\u65e5\u3001\u96fb\u8eca\u306e\u4e2d\u3067YouTube<\/code>\u3092\u89b3\u3066\u3044\u305f\u306e\u3067\u3059\u304c\u3001\u6025\u306b\u753b\u8cea\u304c\u8352\u304f\u306a\u3063\u3066\u3057\u307e\u3063\u305f\u3093\u3067\u3059\u306d\u3002\uff08\u5730\u65b9\u306a\u306e\u3067\u7121\u6599Wi-Fi<\/code>\u304c\u3042\u308a\u307e\u305b\u3093\ud83d\ude2b\uff09<\/p>\n

\u3053\u308c\u3063\u3066\u3001YouTube<\/code>\u5074\u3067\u300c\u56de\u7dda\u304c\u9045\u304f\u306a\u3063\u305f\u300d\u3068\u3044\u3046\u306e\u3092\u691c\u77e5\u3057\u3066\u308f\u3056\u308f\u3056\u30b5\u30a4\u30ba\u304c\u5c0f\u3055\u3044\u52d5\u753b\u306b\u5207\u308a\u66ff\u3048\u3066\u304f\u308c\u3066\u3044\u308b\u3063\u3066\u3053\u3068\u3060\u3068\u601d\u3046\u3093\u3067\u3059\u3002\u753b\u8cea\u304c\u60aa\u304b\u308d\u3046\u304c\u52d5\u753b\u3092\u518d\u751f\u3057\u7d9a\u3051\u3089\u308c\u308b\u3068\u3044\u3046\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u3067\u3059\u306d\u3002<\/p>\n

\u3055\u3059\u304cGoogle<\/code>\u3055\u3093\u3002<\/p>\n

\u6700\u8fd1\u3067\u306f\u30b9\u30de\u30db\u3082\u9ad8\u6027\u80fd\u306b\u306a\u308a\u3001\u666e\u901a\u306bYouTube<\/code>\u52d5\u753b\u304c\u518d\u751f\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3057\u305f\u304c\u3001\u9006\u306bYouTube<\/code>\u304c\u4eba\u6c17\u306b\u306a\u308a\u3059\u304e\u3066\u300c\u901a\u4fe1\u901f\u5ea6\u5236\u9650\u300d<\/strong>\u304c\u767a\u751f\u3057\u305f\u308a\u3059\u308b\u3068\u3044\u3046\u8a71\u3092\u3061\u3089\u307b\u3089\u805e\u3044\u305f\u308a\u3057\u307e\u3059\u3002\u753b\u8cea\u306e\u5207\u308a\u66ff\u3048\u306f\u305d\u3046\u3044\u3063\u305f\u3082\u306e\u3078\u306e\u5bfe\u5fdc\u3068\u3044\u3063\u3066\u3044\u3044\u3067\u3057\u3087\u3046\u3002<\/p>\n

\u305d\u3057\u3066\u3001\u3053\u306e\u7d4c\u9a13\u3092\u5143\u306b\u3001\u6b21\u306e\u3088\u3046\u306a\u3053\u3068\u3092\u8003\u3048\u307e\u3057\u305f\u3002<\/p>\n

\u56de\u7dda\u901f\u5ea6\u306b\u3088\u3063\u3066\u753b\u50cf\u306e\u5927\u304d\u3055\u3092\u5207\u308a\u66ff\u3048\u308b\u3053\u3068\u306f\u3067\u304d\u306a\u3044\u3060\u308d\u3046\u304b\uff01\uff1f<\/strong><\/p>\n

\u3068\u3002<\/p>\n

\u305d\u3046\u3067\u3059\uff01<\/p>\n

YouTube<\/code>\u306e\u3088\u3046\u306b\u56de\u7dda\u901f\u5ea6\u3092\u8a08\u7b97\u3057\u3066\u3001\u305d\u306e\u901f\u5ea6\u306b\u5fdc\u3058\u305f\u30b5\u30a4\u30ba\u306e\u753b\u50cf\u3092\u8868\u793a\u3067\u304d\u308c\u3070\u30a6\u30a7\u30d6\u30b5\u30a4\u30c8\u3067\u3082\u30e6\u30fc\u30b6\u30d3\u30ea\u30c6\u30a3\u304c\u5411\u4e0a\u3059\u308b\u306e\u3067\u306f\u306a\u3044\u304b\u3068\u8003\u3048\u305f\u3093\u3067\u3059\u306d\u3002<\/p>\n

\u3068\u3044\u3046\u3053\u3068\u3067\u3001\u4eca\u56de\u306fVue<\/code>\u3092\u4f7f\u3063\u3066\u3053\u306e\u6a5f\u80fd\u3092\u5b9f\u88c5\u3057\u3066\u307f\u308b\u3053\u3068\u306b\u3057\u307e\u3057\u305f\u3002<\/p>\n

\u305c\u3072\u7686\u3055\u3093\u306e\u304a\u5f79\u306b\u7acb\u3066\u308b\u3068\u5b09\u3057\u3044\u3067\u3059\ud83d\ude0a\u2728<\/p>\n

\"\"<\/p>\n

\u958b\u767a\u74b0\u5883\uff1a<\/strong> Vue 2.6<\/p>\n

\u307e\u305a\u306fVue<\/code>\u306e\u57fa\u672c\u5f62\u3092\u3064\u304f\u308a\u3001\u56de\u7dda\u30b9\u30d4\u30fc\u30c9\uff5b\u65e9\u3044\uff0f\u666e\u901a\uff0f\u9045\u3044\uff5d\u3092\u5224\u5225\u3059\u308b\u5909\u6570downloadSpeed<\/code>\u3092\u8ffd\u52a0\u3057\u307e\u3059\u3002<\/p>\n

<html>\r\n<body>\r\n    <div id=\"app\">\r\n        <!-- \u3053\u3053\u3067\u753b\u50cf\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u4f7f\u3046 -->\r\n    <\/div>\r\n    <script src=\"https:\/\/cdn.jsdelivr.net\/npm\/vue@2.6.0\"><\/script>\r\n    <script>\r\n\r\n        \/\/ <--- \u3053\u3053\u306b\u753b\u50cf\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u672c\u4f53\u3092\u3064\u304f\u308b\r\n        new Vue({\r\n            el: '#app',\r\n            data: {\r\n                downloadSpeed: null,<\/strong> \/\/ \u56de\u7dda\u901f\u5ea6 {fast\/medium\/slow}\r\n            }\r\n        });\r\n\r\n    <\/script>\r\n<\/body>\r\n<\/html><\/pre>\n
\u56de\u7dda\u901f\u5ea6\u3092\u8a08\u7b97\u3059\u308b<\/h1>\n
\u3067\u306f\u3001\u7d9a\u3044\u3066\u56de\u7dda\u901f\u5ea6\u306e\u8a08\u7b97\u3067\u3059\u3002<\/p>\n
\u8a08\u7b97\u624b\u9806\u306f\u6b21\u306e\u3068\u304a\u308a\u3067\u3059\u3002<\/p>\n
    \n
  1. JavaScript\u5185\u3067\u901f\u5ea6\u8a08\u7b97\u306e\u305f\u3081\u306e\u753b\u50cf\u3092\u8aad\u307f\u8fbc\u3080<\/li>\n
  2. \u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u958b\u59cb\u6642\u9593\u3068\u7d42\u4e86\u6642\u9593\u3092\u53d6\u5f97<\/li>\n
  3. \u305d\u306e\u5dee\u304b\u3089\u4f55\u79d2\u3067\u753b\u50cf\u8aad\u307f\u8fbc\u307f\u304c\u5b8c\u4e86\u3057\u305f\u304b\u3092\u8a08\u7b97<\/li>\n
  4. \u8aad\u307f\u8fbc\u3093\u3060\u753b\u50cf\u30b5\u30a4\u30ba\u3068\uff13\u756a\u306e\u79d2\u6570\u304b\u3089\u56de\u7dda\u901f\u5ea6\u300cMbps\u203b\u300d\u3092\u8a08\u7b97<\/li>\n
  5. Mbps\u306b\u3088\u3063\u3066\u56de\u7dda\u306e\uff5b\u65e9\u3044\uff0f\u666e\u901a\uff0f\u9045\u3044\uff5d\u3092\u5224\u5225\u3059\u308b<\/li>\n<\/ol>\n
    \u203b megabyte per second\u3000\u30fb\u30fb\u30fb\u3000\uff11\u79d2\u9593\u306b\u4f55\u30e1\u30ac\u8ee2\u9001\u3067\u304d\u308b\u304b<\/p>\n
    \u5b9f\u969b\u306e\u30b3\u30fc\u30c9\u306f\u3053\u3061\u3089\u3067\u3059\u3002<\/p>\n
    new Vue({\r\n\r\n    \/\/ \u7701\u7565\r\n\r\n    methods: {\r\n        getTime() {<\/strong> \/\/ \u73fe\u5728\u306e\u30bf\u30a4\u30e0\u30b9\u30bf\u30f3\u30d7\u3092\u53d6\u5f97\uff08\u30df\u30ea\u79d2\uff09\r\n\r\n            const date = new Date();<\/strong>\r\n            return date.getTime();<\/strong>\r\n\r\n        }<\/strong>\r\n    },\r\n    mounted() {\r\n\r\n        \/\/ \u56de\u7dda\u901f\u5ea6\u3092\u8a08\u7b97\r\n        const imageBytes = 102117;    \/\/ \u753b\u50cf\u306e\u30b5\u30a4\u30ba\uff08Bytes\uff09<\/strong>\r\n        const imageBits = imageBytes * 8;    \/\/ \u753b\u50cf\u306e\u30b5\u30a4\u30ba\uff08Bits\uff09<\/strong>\r\n        let startTime = this.getTime(); \/\/ \u8aad\u307f\u8fbc\u307f\u306e\u958b\u59cb\u6642\u9593<\/strong>\r\n        let endTime = null;<\/strong>\r\n        let image = new Image();<\/strong>\r\n        image.onload = () => {<\/strong>\r\n\r\n            endTime = this.getTime();   \/\/ \u8aad\u307f\u8fbc\u307f\u306e\u5b8c\u4e86\u6642\u9593<\/strong>\r\n            const diffSeconds = (endTime - startTime) \/ 1000;   \/\/ \u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\u306b\u4f55\u79d2\u304b\u304b\u3063\u305f\u304b<\/strong>\r\n            const megaBps = parseFloat((imageBits \/ diffSeconds \/ (1024 * 1024)).toFixed(2));<\/strong>\r\n\r\n            if(megaBps > 5.0) {<\/strong>\r\n\r\n                this.downloadSpeed = 'fast';<\/strong>\r\n\r\n            } else if(megaBps > 1.0) {<\/strong>\r\n\r\n                this.downloadSpeed = 'normal';<\/strong>\r\n\r\n            } else {<\/strong>\r\n\r\n                this.downloadSpeed = 'slow';<\/strong>\r\n\r\n            }<\/strong>\r\n\r\n        };<\/strong>\r\n        image.src = '\/images\/100kb.jpg?'+ startTime;<\/strong>\r\n\r\n    }\r\n});<\/pre>\n
    \u203b \u3053\u306e\u8a08\u7b97\u3067\u4f7f\u3046\u753b\u50cf\uff08100kb\uff09\u306f\u3053\u3061\u3089\u306e\u30da\u30fc\u30b8<\/a>\u304b\u3089\u30c0\u30a6\u30f3\u30ed\u30fc\u30c9\u3055\u305b\u3066\u3044\u305f\u3060\u304d\u307e\u3057\u305f\u3002\u3042\u308a\u304c\u3068\u3046\u3054\u3056\u3044\u307e\u3057\u305f\ud83d\ude0a<\/p>\n
    \u306a\u304a\u3001\u753b\u50cf\u306e\u30d0\u30a4\u30c8\u6570\u3092\u53d6\u5f97\u3059\u308b\u306b\u306f\u3001Google Chrome<\/code>\u3067DevTool<\/code>\u3092\u8d77\u52d5\uff08\u53f3\u30af\u30ea\u30c3\u30af > \u691c\u8a3c > Network\uff09\u3057\u306a\u304c\u3089\u76f4\u63a5\u753b\u50cf\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u3068Content-Length<\/code>\u304c\u78ba\u8a8d\u3067\u304d\u307e\u3059\u306e\u3067\u3001\u305d\u306e\u6570\u5b57\u3092\u305d\u306e\u307e\u307e\u66f8\u304d\u8fbc\u3093\u3067\u304f\u3060\u3055\u3044\u3002<\/p>\n
    \"\"<\/p>\n
    \u307e\u305f\u3001\u4eca\u56de\u306f\u57fa\u6e96\u5024\u30925.0 Mbps<\/code>\u30681.0 Mbps<\/code>\u306b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u304a\u597d\u307f\u3067\u5909\u66f4\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n
    \u56de\u7dda\u901f\u5ea6\u3067\u753b\u50cf\u3092\u5207\u308a\u66ff\u3048\u308bVue\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8\u3092\u3064\u304f\u308b<\/h1>\n
    \u3067\u306f\u3001\u56de\u7dda\u901f\u5ea6{fast\/medium\/slow}<\/code>\u304c\u53d6\u5f97\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u3063\u305f\u306e\u3067\u3001\u6b21\u306f\u3053\u306e\u901f\u5ea6\u3067\u753b\u50cf\u3092\u5207\u308a\u66ff\u3048\u308bVue<\/code>\u30b3\u30f3\u30dd\u30fc\u30cd\u30f3\u30c8v-image<\/code>\u3092\u3064\u304f\u3063\u3066\u3044\u304d\u307e\u3057\u3087\u3046\u3002<\/p>\n
    <script>\r\n\r\n    Vue.component('v-image', {<\/strong>\r\n        props: [<\/strong>\r\n            'speed',<\/strong>\r\n            'largeSrc',<\/strong>\r\n            'mediumSrc',<\/strong>\r\n            'smallSrc',<\/strong>\r\n        ],<\/strong>\r\n        template: '<img :src=\"imageSrc\" v-if=\"hasSrc\">',<\/strong>\r\n        computed: {<\/strong>\r\n            imageSrc() {<\/strong>\r\n\r\n                let src = '';<\/strong>\r\n\r\n                if(this.speed === 'fast') {<\/strong>\r\n\r\n                    src = this.largeSrc;<\/strong>\r\n\r\n                } else if(this.speed === 'medium') {<\/strong>\r\n\r\n                    src = this.mediumSrc;<\/strong>\r\n\r\n                } else if(this.speed === 'slow') {<\/strong>\r\n\r\n                    src = this.smallSrc;<\/strong>\r\n\r\n                }<\/strong>\r\n\r\n                return src;<\/strong>\r\n\r\n            },<\/strong>\r\n            hasSrc() {<\/strong>\r\n\r\n                return (this.imageSrc);<\/strong>\r\n\r\n            }<\/strong>\r\n        }<\/strong>\r\n    });<\/strong>\r\n\r\n    new Vue({\r\n        \/\/ \u7701\u7565\r\n    });\r\n\r\n<\/script><\/pre>\n
    \u3053\u3053\u3067\u306f\u3001{fast\/medium\/slow}<\/code>\u306e\u3046\u3061\u3069\u308c\u304b\u304c\u5165\u3063\u3066\u304f\u308bspeed<\/code>\u3068\u3044\u3046\u30d7\u30ed\u30d1\u30c6\u30a3\u3092\u4f7f\u3063\u3066\u3001\uff5b\u5927\u304d\u3044\uff0f\u4e2d\u304f\u3089\u3044\uff0f\u5c0f\u3055\u3044\uff5d\u306e\u4e2d\u304b\u3089\u3069\u306e\u753b\u50cf\u3092\u8868\u793a\u3059\u308b\u304b\u3092\u5224\u65ad\u3057\u3066\u3044\u307e\u3059\u3002<\/p>\n
    \u305d\u3057\u3066\u3001\u305d\u308c\u305e\u308c\u306eURL\u306f\u4ee5\u4e0b\u306e\u30d7\u30ed\u30d1\u30c6\u30a3\u3067\u6307\u5b9a\u3067\u304d\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n