gpt4 book ai didi

javascript - 函数内的 setInterval 每秒将 console.log 加倍 - Javascript

转载 作者:行者123 更新时间:2023-12-01 00:15:52 24 4
gpt4 key购买 nike

我仍然对 JS 很感兴趣,并且开始理解它,但是我在 setInterval 方面遇到了困难。我在网上寻找答案,但无法实现解决方案。 我的项目是一个加载栏,显示您的轮类时间。

我有一个 setInterval 来计算每秒从现在到 09:00:00am 的距离

我有另一个 setInterval 用于更新函数内每秒加载栏的宽度

我有根据的猜测是两者是冲突的,但我需要在两个函数之间传递变量,所以我无法将它们分开。我添加了一个 console.log ,该日志将从 1、20、50、150、300、500、700 等增加。这扰乱了我的加载栏,因为过了一会儿它尝试 loadingBar.style.width = Percentage.toFixed(4) + "%"; x 1000 每秒。

我错过了什么?

const target = 100; //percent

let shiftLength = 8.5; //hours
//convert into miliseconds
shiftLength *= 60 * (60 * 1000);

function setup() {
//Set the start point for today at 09:00:00am & now.
let start = new Date();
start.setHours(9, 00, 00);

setInterval(timeConversion, 1000);

function timeConversion() {

//Work out the difference in miliseconds from now to the start point.
let now = new Date();
let distance = now -= start;

// Time calculations for hours, minutes and seconds
let hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
let minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
let seconds = Math.floor((distance % (1000 * 60)) / 1000);
let miliseconds = distance;

//Percentage of the day complete
let percentage;
percentage = (miliseconds / shiftLength) * 100;

moveLoadingBar();

function moveLoadingBar() {
let loadingBar = document.getElementById("myBar");
let id = setInterval(frame, 1000);

//pass the percentage to a function that updates the width of the loading bar
function frame() {
if (percentage >= target) {
clearInterval(id);
} else {
loadingBar.style.width = percentage.toFixed(4) + "%";

//The line above and this is being duplicated to the console.
//the longer this code runs the more buggy my bar appears.
console.log("hello");
}
}
}
}
}

setup();
#myProgress {
width: 100%;
background-color: #ddd;
}

#myBar {
width: 1%;
height: 30px;
background: linear-gradient(90deg, #00C9FF 0%, #92FE9D 100%);
}
<!DOCTYPE html>
<html>

<head>
<link rel="stylesheet" type="text/css" href="stylesheet.css">
<title>Loading bar project</title>
</head>

<body>

<h1>JavaScript Progress Bar</h1>

<div id="myProgress">
<div id="myBar"></div>
</div>

<br>

</body>
<script src="index.js"></script>
</html>

最佳答案

您要在间隔内设置间隔,请尝试改用 setTimeout:

setInterval(timeConversion, 1000); // INTERVAL

function timeConversion() {

//Work out the difference in miliseconds from now to the start point.
let now = new Date();
let distance = now -= start;

// Time calculations for hours, minutes and seconds
let hours = Math.floor((distance % (1000 * 60 * 60 * 24)) / (1000 * 60 * 60));
let minutes = Math.floor((distance % (1000 * 60 * 60)) / (1000 * 60));
let seconds = Math.floor((distance % (1000 * 60)) / 1000);
let miliseconds = distance;

//Percentage of the day complete
let percentage;
percentage = (miliseconds / shiftLength) * 100;

moveLoadingBar();

function moveLoadingBar() {
let loadingBar = document.getElementById("myBar");
let id = setInterval(frame, 1000); // INTERVAL INSIDE INTERVAL; make this setTimeout

//pass the percentage to a function that updates the width of the loading bar
function frame() {
if (percentage >= target) {
clearInterval(id);
} else {
loadingBar.style.width = percentage.toFixed(4) + "%";

//The line above and this is being duplicated to the console.
//the longer this code runs the more buggy my bar appears.
console.log("hello");
}
}
}

关于javascript - 函数内的 setInterval 每秒将 console.log 加倍 - Javascript,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/59773923/

24 4 0
Copyright 2021 - 2024 cfsdn All Rights Reserved 蜀ICP备2022000587号
广告合作:1813099741@qq.com 6ren.com