p5.TableRow set() Method

The set() method of p5.TableRow in p5.js is used to store the given value to the given column of the table. The column can be specified by its column ID or name.

Syntax:

set( column, value )

Parameters: This method accepts two parameters as mentioned above and described below: 

• column: It is a String or Number that denotes the column name or ID of the column.
• value: It is a String or Number that specifies the value that has to be stored.

The example below illustrates the set() method in p5.js:

Example 1:

javascript

function setup() {
  createCanvas(500, 300);
  textSize(18);

  text("Click on the button to set " +
       "the values of the table",
       20, 20);

  setBtn =
    createButton("Add Table Values");
  setBtn.position(30, 40);
  setBtn.mouseClicked(setTableData);

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

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

function setTableData() {
  for (let r = 0; r < 5; r++) {
    for (let c = 0; c < 3; c++) {

      // Get the row of the table
      let tableRow = table.rows[r];

      // Set the value at the given
      // column of the row
      tableRow.set(c, r + "::" + c);
    }
  }

  showTable();
}

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

  // Show all the columns present
  for (let c = 0; c < 3; c++) {
    text(table.columns,
         20 + 100 * c, 80);
  }

  // Show all the rows currently
  // present in the table
  for (let r = 0; r < 5; r++) {
    for (let c = 0; c < 3; c++) {
      text(table.getString(r, c),
           20 + 100 * c, 120 + 20 * r);
    }
  }
}

Output:

Example 2:

javascript

function setup() {
  createCanvas(500, 300);
  textSize(18);

  changeBtn =
    createButton("Modify Table");
  changeBtn.position(30, 40);
  changeBtn.mouseClicked(modifyTable);

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

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

  setTableData();

  // Display the table
  showTable();
}

function setTableData() {
  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, 0 + " " + 0);
    }
  }

  showTable();
}

function modifyTable() {
  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++) {

      // If the index of the table is
      // a diagonal, set it to "XX"
      if (r == c)
        tableRow.set(c, "XX");
      if (r + c == 4)
        tableRow.set(c, "YY");
    }
  }

  showTable();
}

function showTable() {
  clear();
  text("The values are added and " +
       "modified using the set() method",
       20, 20);

  // Show all the rows currently
  // present in the table
  for (let r = 0; r < 5; r++) {
    for (let c = 0; c < 5; c++) {
      text(table.getString(r, c),
           20 + 80 * c, 80 + 20 * r);
    }
  }
}

Output:

Online editor: https://editor.p5js.org/
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5.TableRow/set