JavaScript preprocessors can help make authoring JavaScript easier and more convenient. For instance, CoffeeScript can help prevent easy-to-make mistakes and offer a cleaner syntax and Babel can bring ECMAScript 6 features to browsers that only support ECMAScript 5.
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.container#app
p.lead
| delayが32bitを超えているとすぐ実行されてしまう。
.card-deck
.card(v-for="item in items")
.card-header
| {{ item.support }}
br
small.text-muted
span.mr-1 delay:
| {{ item.delay | separate }}
.card-body
h4.card-title(v-show="item.rest > 0")
small.mr-2 あと
| {{ item.rest | formatMsec | separate }}
small.ml-1 秒
h4.card-title(v-show="item.rest <= 0")
| 完了
p.card-text
| {{ item.delay | formatTimestamp(startAt, "YYYY/M/D") }}
| {{ item.delay | formatTimestamp(startAt, "HH:mm:ss") }}
p.card-text
| timeout:
span(v-show="item.isTimeoutDone", v-bind:class="{ 'badge-success': item.rest <= 0, 'badge-danger': item.rest > 0 }").ml-1.badge.badge-pill
| Complete
span(v-show="!item.isTimeoutDone").ml-1.badge.badge-pill.badge-secondary
| Progress
body {
margin: 20px;
}
.text-white {
.text-muted {
color: rgba(#fff, .8) !important;
}
}
const value = {
startAt: 0, // 計測開始日時
progressTime: 0, // 経過ミリ秒
items: [
{
delay: 5 * 1000, // 5秒
rest: 0,
isTimeoutDone: false,
support: '5秒'
},
{
delay: 60 * 1000, // 1分
rest: 0,
isTimeoutDone: false,
support: '1分'
},
{
delay: 2147483647, // 32bit上限
rest: 0,
isTimeoutDone: false,
support: '32ビットの最大値'
},
{
delay: 2147483648, // 32bit超える
rest: 0,
isTimeoutDone: false,
support: '32ビットを超える値'
}
]
};
const app = new Vue({
el: '#app',
data: value,
mounted: function() {
// 計測開始
this.startAt = new Date().getTime();
this.progress();
setInterval(() => {
this.progress();
}, 1000);
// setTimeoutを設定する
this.items.forEach(function (value, index) {
setTimeout(function () {
value.isTimeoutDone = true;
}, value.delay);
});
},
methods: {
progress: function() {
const progressTime = new Date().getTime() - this.startAt;
this.progressTime = progressTime;
// 計算し直す
this.items.forEach(function (value, index) {
value.rest = Math.max(value.delay - progressTime, 0); // 0を下回らないように
});
}
},
filters: {
/**
* 3桁ごとにカンマ
*
* @param num {number} 数値
* @return {string} 3桁区切り
*/
separate: function (num) {
return String(num).replace(/(\d)(?=(\d\d\d)+(?!\d))/g, '$1,');
},
/**
* ミリ秒をフォーマットする
*
* @param msec {number} ミリ秒
* @return {number} フォーマットした秒
*/
formatMsec: function(msec) {
// 小数点を省略
return Math.round(msec / 1000);
},
/**
* タイムスタンプをフォーマットする
*
* @param timestamp {number} タイムスタンプ
* @param startAt {number} 基準時間
* @param format {string} フォーマット
* @return {string} フォーマットしたタイムスタンプ
*/
formatTimestamp: function (timestamp, startAt, format = '') {
return moment(startAt, 'x').add(timestamp, 'ms').format(format);
}
}
});
Also see: Tab Triggers