javascript - webapp js countdown problem

Question

Now I encounter such a problem: {Code...} I want to make a component or function that can solve all the countdown problems on the page, but my idea is stuck. I wonder if the experts have any good ideas? Solutions, or information? Thank you! Supplementary question: I am debugging the timer on my mobile phone...

高洛峰 · Answer

Compare with the system time of the mobile phone;
If you are still unsure, compare with the system time of the backend when the app is opened.

漂亮男人 · Answer

Vue.component('com1', {
            props: ['value'],
            data() {
                return {
                    count: null,
                }
            },
            created() {
                source.subscribe(count => this.count = count % 2);
            },
            template: '<p>距离 {{ value | date("HH:mm:ss") }} 还有 {{ seconds }}s</p>',
            computed: {
                seconds() {
                    this.count;
                    return Math.abs(moment().diff(this.value, 'seconds'));
                }
            },
            filters: {
                date(val, format) {
                    if (val) return moment(val).format(format || 'YYYY-MM-DD HH:mm:ss')
                    return val
                }
            }
        });

new Vue({
            el: '#app',
            data() {
                return {
                    items: []
                }
            },
            created() {
                for (var i = 0; i < 10; i++) {
                    this.items.push({
                        time: moment().add(i + 1, 'hours')
                    })
                }
            }
        })
    </script>
</body>
</html></code></pre>

Php8, I'm coming too

Learn website layout in 30 minutes

Shangguan Oracle Beginner to Proficient Video Tutorial

Your first line of UNI-APP code

Flutter from scratch to app launch

Brother Lian New Linux Video Tutorial

AXURE 9 Video Tutorial (Suitable for Product Manager Interactive Product Design UI)

Zero Basic Proficiency PS Video Tutorial

16 day UI video tutorial to get you started

PS Techniques and Slicing Techniques Video Tutorial

Alibaba Cloud Environment Construction and Project Launch Video Tutorial

Overview of Computer Networks - Basic Knowledge that Programmers Must Master

Essential Tutorial for Programmers - HTTP Protocol Explanation

Websocket Video Tutorial