JavaScript? CSS? ? ?? ?? ???? ??
???? ? ?? ? ?? ?? ? ?? ?? ?? ? ????. JavaScript? CSS? ???? Excel? '?? ?' ??? ????????.
JavaScript ???
? ?? JavaScript ???? ? ?? ?? ???? ??? ????.
- ? ?? ?? ? ??? ???? ?? ?? ???.
- ??? ??? ???? ???? ??? ??? ?? ???.
? ??? ?? CSS? ???? ????? ?????. ?? ??? ?? ???? ?? ?? ???. ???? ???? ? ??? ??? ??? ? ?? ???? ????? ?????.
CSS ?? ??
<code class="css">/* Fixed header table */
.fixed-header {
position: absolute;
top: 0;
left: 0;
z-index: 1;
}
/* Scrollable body table */
.scrollable-body {
position: absolute;
top: 0;
left: 0;
z-index: 0;
}</code>
JavaScript ???
<code class="javascript">// Create a table with the first row as the header
const table = document.createElement('table');
const headerRow = table.createTHead().insertRow();
// Create the first column headings
for (let i = 0; i < numColumns; i++) {
headerRow.appendChild(document.createElement('th')).innerHTML = 'Heading ' + (i + 1);
}
// Create the body of the table with the remaining data
const body = table.createTBody();
for (let i = 0; i < numRows; i++) {
const row = body.insertRow();
for (let j = 0; j < numColumns; j++) {
row.appendChild(document.createElement('td')).innerHTML = 'Data ' + (i + 1) + ', ' + (j + 1);
}
}
// Split the table into two: fixed header and scrollable body
const fixedHeader = table.cloneNode(true);
fixedHeader.tBodies[0].remove();
const scrollableBody = table.cloneNode(true);
fixedHeader.tHead.remove();
// Add the two tables to the page
document.body.appendChild(fixedHeader);
document.body.appendChild(scrollableBody);
// Position the tables using CSS
fixedHeader.classList.add('fixed-header');
scrollableBody.classList.add('scrollable-body');</code>
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