How do I loop through table rows and cells using JavaScript?

Iterating Through Table Rows and Cells in JavaScript

Traversing through table elements is essential for accessing and manipulating data in web tables. Here's how you can achieve this efficiently in JavaScript:

Iterating Through Rows and Cells Individually

If you want to loop through each row and cell separately, identify the table by its ID:

var table = document.getElementById("mytab1");

Nest two loops as follows:

for (var i = 0, row; row = table.rows[i]; i++) {
  // Iterate through rows
  // Access rows using the "row" variable
  for (var j = 0, col; col = row.cells[j]; j++) {
    // Iterate through columns
    // Access columns using the "col" variable
  }
}

Iterating Through Cells Only

If you only need to iterate through the cells, regardless of their row, use the following code:

for (var i = 0, cell; cell = table.cells[i]; i++) {
  // Iterate through cells
  // Access cells using the "cell" variable
}

By utilizing these techniques, you can easily access and manipulate the data within the HTML tables from your JavaScript code.

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