【发布时间】：2021-05-02 14:21:48
【问题描述】：
您好，我正在做一个报价网站项目。要清楚地理解问题，请参阅我的 html、css 和 Javascript。
我的 HTML
<html>
<head>
<style>/* Main Status */
.pagable {
display: flex;
flex-direction: column;
border: var(--pageable-border);
background: var(--pageable-background);
}
.status-copy-alert {
position: relative;
background-color: #18b495;
color: #ffffff;
padding: 10px 10px;
border-radius: 5px;
left: 8px;
text-transform: uppercase;
letter-spacing: 0.05em;
font-weight: 500;
visibility: hidden;
}
.status-copy-alert:before{
content:"";
position: absolute;
height: 10px;
width: 10px;
background-color: #18b495;
left: -5px;
transform: rotate(45deg);
top: 39%;
}
.pagable .pagable-results {
display: flex;
flex-direction: column;
flex: 1;
padding: 0.25em;
}
.pagable .pagable-status {
display: flex;
flex-direction: row;
justify-content: space-between;
padding: 0.25em;
background: var(--pageable-status-background);
}
.pagable .pagable-actions {
display: grid;
grid-auto-flow: column;
grid-gap: 0.25em;
}
.pagable .pagable-actions input[name="page-curr"] {
width: 3em;
}
.status-copy-alert {
position: relative;
background-color: #18b495;
color: #ffffff;
padding: 10px 10px;
border-radius: 5px;
left: -42px;
text-transform: uppercase;
letter-spacing: 0.05em;
font-weight: 500;
visibility: visible;
opacity: 0;
transition: left 0.4s, opacity 0.4s;
}
.animatedClass {
left: 20px;
opacity: 1;
}
.status-copy-alert:before{
content:"";
position: absolute;
height: 10px;
width: 10px;
background-color: #18b495;
left: -5px;
transform: rotate(45deg);
top: 39%;
}
</style>
</head>
<body>
<a href="hindinj.html">caeman</a>
<div class="mainStatus">
<h2 class="statusHeading">Latest English Status</h2>
<div class="allquotes"></div>
<div class="pagable-status">
<label>Page <span class="page-no-curr"></span> of <span class="page-no-count"></span></label>
<div class="pagination">
<button class="page-btn-prev btn">PRE</button>
<span class="manho">1</span>
<button class="page-btn-next btn">NEXT</button>
</div>
<input name="current-page" class="value-page" type="number" value="1" min="1">
<button class="jump-btn">Go</button>
</div>
</body>
</html>
我的 Javascript
const resultEl = document.querySelector('.allquotes');
const pageCurr = document.querySelector('.manho')
const pageNoCurr = document.querySelector('.page-no-curr');
const pageNoCount = document.querySelector('.page-no-count')
const btnPrev = document.querySelector('.page-btn-prev');
const btnNext = document.querySelector('.page-btn-next');
let results = [];
const getResultCount = () => results.length;
const getPageSize = () => 12;
const getCurrPage = () => +pageCurr.innerText;
const getPageCount = () => Math.ceil(getResultCount() / getPageSize());
const pageResponse = (records, pageSize, page) =>
(start => records.slice(start, Math.min(records.length, start + pageSize)))
(pageSize * (page - 1));
const btnJump = document.querySelector('.jump-btn');
const pageValue = document.querySelector('.value-page');
const main = async() => {
btnPrev.addEventListener('click', navPrev);
btnNext.addEventListener('click', navNext);
btnJump.addEventListener('click', navJump);
results = await retrieveAllQuotes();
updatePager(results);
redraw();
};
const redraw = () => {
resultEl.innerHTML = '';
const paged = pageResponse(results, getPageSize(), getCurrPage());
const contents = document.createElement('div');
contents.classList.add("allStatus");
const quotes = paged.map((record) => `<div class='latestatus'><p class='copytxt'>${record.quotes}</p><div> <button class="copystatus btn">Copy</button><span class="status-copy-alert hidden" id="status-copy-alert">Copied!</span></div></div>`);
const quoteGroupNumer = Math.ceil(quotes.length / 2);
const groups = Array(quoteGroupNumer).fill('').map((value, index) => {
const groupQuoteFirst = quotes[2 * index]; // 0, 2, 4, 6
const groupQuoteSecond = quotes[2 * index + 1] || ''; // 1, 3, 5, 7
return `<div class="flex">${groupQuoteFirst}${groupQuoteSecond}</div>`;
});
contents.innerHTML = groups.join('');
resultEl.append(contents);
};
const navPrev = (e) => {
const pages = getPageCount();
const curr = getCurrPage();
const prevPage = curr > 1 ? curr - 1 : curr;
pageCurr.innerText = prevPage;
pageNoCurr.textContent = prevPage;
redraw();
}
const navNext = (e) => {
const pages = getPageCount();
const curr = getCurrPage();
const nextPage = curr < pages ? curr + 1 : curr;
pageCurr.innerText = nextPage;
pageNoCurr.textContent = nextPage;
redraw();
}
const navJump = (e) => {
const pages = getPageCount();
const curr = getCurrPage();
pageCurr.innerText = pageValue.value;
pageNoCurr.textContent = pageValue.value;
redraw();
}
const updatePager = () => {
const count = getPageCount();
const curr = getCurrPage();
pageCurr.innerText = curr > count ? 1 : curr;
pageNoCurr.textContent = curr > count ? 1 : curr;
pageNoCount.textContent = count;
};
const retrieveAllQuotes = async function() {
return[{
quotes: "1The cat is better than dog."
},
{
quotes: "2Google is a open source library."
},
{
quotes: "3Cats are better than ferrets."
},
{
quotes: "4Love books."
},
{
quotes: "5Life is short make it possible."
},
{
quotes: "6The cat is better than dog"
},
{
quotes: "7Google is a open source library."
},
{
quotes: "8Cats are better than ferrets."
},
{
quotes: "9Love books."
},
{
quotes: "10Life is short make it possible."
},
{
quotes: "1The cat is better than dog."
},
{
quotes: "2Google is a open source library."
},
{
quotes: "3Cats are better than ferrets."
},
{
quotes: "4Love books."
},
{
quotes: "5Life is short make it possible."
},
{
quotes: "6The cat is better than dog"
},
{
quotes: "7Google is a open source library."
},
{
quotes: "8Cats are better than ferrets."
},
{
quotes: "9Love books."
},
{
quotes: "10Life is short make it possible."
},
{
quotes: "1The cat is better than dog."
},
{
quotes: "2Google is a open source library."
},
{
quotes: "3Cats are better than ferrets."
},
{
quotes: "4Love books."
},
{
quotes: "5Life is short make it possible."
},
{
quotes: "6The cat is better than dog"
},
{
quotes: "7Google is a open source library."
},
{
quotes: "8Cats are better than ferrets."
},
{
quotes: "9Love books."
},
{
quotes: "10Life is short make it possible."
},
{
quotes: "1The cat is better than dog."
},
{
quotes: "2Google is a open source library."
},
{
quotes: "3Cats are better than ferrets."
},
{
quotes: "4Love books."
},
{
quotes: "5Life is short make it possible."
},
{
quotes: "6The cat is better than dog"
},
{
quotes: "7Google is a open source library."
},
{
quotes: "8Cats are better than ferrets."
},
{
quotes: "9Love books."
},
{
quotes: "10Life is short make it possible."
},
];
}
document.querySelector('.allquotes').addEventListener(
'click',
function (e) {
e.preventDefault();
if (e.target && e.target.matches('.copystatus')) {
const quote = e.target.parentNode.closest('.latestatus')
.childNodes[0].textContent;
const notify = e.target.nextSibling.closest('.status-copy-alert');
notify.classList.add('animatedClass')
setTimeout(() => {
notify.classList.remove('animatedClass')
}, 1000);
const textArea = document.createElement('textarea');
textArea.value = quote;
document.body.appendChild(textArea);
textArea.select();
document.execCommand('Copy');
textArea.remove();
}
},
false
);
main();
运行上面的代码。您会看到一些具有出色分页的引文。在页面底部，您可以看到一个输入标签和一个 Go 按钮。此输入和按钮用于从一页跳转到另一页。在此上方您可以看到第 1 页，共 4 页，它表明有多少页。
现在让我们将 Page 1 of 4 视为 Page 1 of Y。请记住，当我在 JavaScript 中添加更多引号时，数字 4 会逐渐改变。
现在我的问题是底部的输入标签。我需要将其限制为 Y，因为每次添加引号时 Y 值都可能会发生变化。有什么办法可以让如果用户输入的数字高于值 Y 它应该被替换为值 Y，如果用户输入低于 1 它应该被替换为 1
我尝试了不同的方法来解决这个问题，但它们都不起作用，而且我是 Javascript 的新手。
非常感谢回答这个问题的人。
【问题讨论】：
标签： javascript html scripting pagination