How to Iterate Through Table Rows and Cells in JavaScript?

Iterating Through Table Rows and Cells in JavaScript

In JavaScript, accessing and iterating through table data can be achieved using the DOM's manipulation abilities. To iterate through table rows (<tr>) and retrieve cell values from each row, follow these steps:

1. Get the HTML Table Element:

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

2. Iterate Through Rows:
Use a for loop to iterate through the rows of the table:

for (var i = 0, row; row = table.rows[i]; i++) {
  // 'row' represents the current row being iterated
  // Access data and manipulate as needed
}

3. Iterate Through Columns:
Within the row iteration, use a nested loop to iterate through the columns (<td>) of each row:

  for (var j = 0, col; col = row.cells[j]; j++) {
    // 'col' represents the current cell being iterated
    // Access data and manipulate as needed
  }

Simplified Iteration:

If the row identity is not important, one can iterate through all cells directly:

for (var i = 0, cell; cell = table.cells[i]; i++) {
  // 'cell' represents the current cell being iterated
  // Access data and manipulate as needed
}

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