p5.TableRow getNum() Method

function setup() {
  createCanvas(600, 300);
  textSize(18);

  text("Click on the button to get " +
       "all the values in the table",
       20, 20);

  setBtn =
    createButton("Get all table values");
  setBtn.position(30, 40);
  setBtn.mouseClicked(showTable);

  // Create the table
  table = new p5.Table();

  setTableData();
}

function setTableData() {

  // Add 5 columns and rows to the table
  for (let i = 0; i < 5; i++) {
    table.addColumn("Column " + i);
    table.addRow();
  }

  for (let r = 0; r < 5; r++) {
    for (let c = 0; c < 5; c++) {

      // Set the value at the given
      // column and row of the table
      table.set(r, c, r * 100 + c);
    }
  }
}

function showTable() {
  clear();
  text("The values of the table are " +
       "retrieved using the getNum() method",
       20, 20);

  // Show all the columns present
  for (let c = 0; c < 5; c++) {
    text(table.columns[c],
         20 + 100 * c, 80);
  }

  // Show all the rows currently
  // present in the table
  for (let r = 0; r < 5; r++) {
  
    // Get the row of the table
    let tableRow = table.rows[r];

    for (let c = 0; c < 5; c++) {

      // Get the numerical value at
      // the given column of the row
      text(tableRow.getNum(c),
           20 + 100 * c,
           120 + 20 * r);
    }
  }
}