【发布时间】：2021-01-26 13:24:04
【问题描述】：
您好，请理解我们的问题，请参阅下面的脚本和 html。
我的脚本
const resultEl = document.querySelector('.allquotes');
const pageSize = document.querySelector('select[name="page-size"]');
const pageCurr = document.querySelector('input[name="page-curr"]')
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 = () => +pageSize.value;
const getCurrPage = () => +pageCurr.value;
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);
pageSize.addEventListener('change', changeCount);
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'>${record.status}</p><div> <button class="copystatus btn">Copy</button><span class="status-copy-alert hidden" id="status-copy-alert">Copied!</span></div></div>`);
const quoteGroupNumer = Math.ceil(quotes.length / 2);
const groups = Array(quoteGroupNumer).fill('').map((value, index) => {
const groupQuoteFirst = quotes[2 * index]; // 0, 2, 4, 6
const groupQuoteSecond = quotes[2 * index + 1] || ''; // 1, 3, 5, 7
return `<div class="flex">${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.value = prevPage;
pageNoCurr.textContent = prevPage;
redraw();
}
const navNext = (e) => {
const pages = getPageCount();
const curr = getCurrPage();
const nextPage = curr < pages ? curr + 1 : curr;
pageCurr.value = nextPage;
pageNoCurr.textContent = nextPage;
redraw();
}
const navJump = (e) => {
const pages = getPageCount();
const curr = getCurrPage();
pageNoCurr.textContent = pageValue.value;
redraw();
}
const changeCount = () => {
updatePager();
redraw();
};
const updatePager = () => {
const count = getPageCount();
const curr = getCurrPage();
pageCurr.value = 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."
},
];
}
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.toggle('hidden');
setTimeout(() => {
notify.classList.add('hidden');
}, 600);
const textArea = document.createElement('textarea');
textArea.value = quote;
document.body.appendChild(textArea);
textArea.select();
document.execCommand('Copy');
textArea.remove();
}
},
false
);
main();
我的 HTML
<!DOCTYPE html>
<html>
<head>
<link href="Find Stgatus/css/style.css" rel="stylesheet" />
<style>
/* Main Status */
.hidden {
display:none;
}
.pagable {
display: flex;
flex-direction: column;
border: var(--pageable-border);
background: var(--pageable-background);
}
.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;
}
.btn {
display: inline-block;
padding: 10px 20px;
cursor: pointer;
background: #18b495;
color: #fff;
border: none;
border-radius: 30px;
}
.btn:hover {
transform: scale(0.98);
}
.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: visible;
}
.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">1</span> of <span class="page-no-count">1</span></label>
<div class="pagable-actions">
<button class="page-btn-prev btn">PRE</button>
<input type="number" name="page-curr" min="1" value="1" />
<button class="page-btn-next btn">NEXT</button>
<select name="page-size">
<option>5</option>
<option>10</option>
<option>20</option>
</select>
</div>
<input class="value-page"/>
<button class="jump-btn">Go</button>
</div>
</body>
</html>
你能看到 go 按钮并在其上方输入吗？任何人都可以修改上面的代码，以便如果我在输入中输入页码并单击 go 按钮，它应该跳转到那里。
我是这个 Javascript 部分的新手，不知道这个领域，所以如果你回答它会对我有很大帮助。
提前致谢
【问题讨论】：
标签： javascript html pagination