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How to Modify a Table Creation Function to Achieve a Specific Layout with Varying Row and Cell Counts in JavaScript?

Susan Sarandon
Susan SarandonOriginal
2024-10-19 08:15:30909browse

How to Modify a Table Creation Function to Achieve a Specific Layout with Varying Row and Cell Counts in JavaScript?

Modifying Table Creation Function for a Specific Layout

Given a JavaScript function designed to create a table with 3 rows and 2 cells, this question seeks guidance on how to modify it to replicate a given table layout where there are 3 rows, but only 2 cells in the first and third rows, while the second row has only one cell that spans two rows.

Adapting the JavaScript Code:

The existing function can be adapted using a more succinct approach with the insertRow and insertCell methods, as shown below:

<code class="js">function tableCreate() {
  const body = document.body,
        tbl = document.createElement('table');
  tbl.style.width = '100px';
  tbl.style.border = '1px solid black';

  for (let i = 0; i < 3; i++) {
    const tr = tbl.insertRow();
    for (let j = 0; j < 2; j++) {
      if (i === 2 && j === 1) {
        break;
      } else {
        const td = tr.insertCell();
        td.appendChild(document.createTextNode(`Cell I${i}/J${j}`));
        td.style.border = '1px solid black';
        if (i === 1 && j === 1) {
          td.setAttribute('rowSpan', '2');
        }
      }
    }
  }
  body.appendChild(tbl);
}</code>

This code:

  • Creates a table with a width of 100 pixels and a black border.
  • Loops through 3 rows, creating a new row each time.
  • For each row, it loops through 2 columns, creating a new cell for each column.
  • Adjusts the second row to span two rows by setting the rowSpan attribute to 2.
  • Inspects the row and cell indices to break out of the second loop for the desired layout.

Final Result:

Executing the modified tableCreate function will generate a table with the given layout:

Cell I0/J0 Cell I0/J1
Cell I1/J0 Cell I1/J1
Cell I2/J0

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