p5.Table set() Method

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

Syntax:

set( row, column, value )

Parameters: This function accepts three parameters as mentioned above and described below:

• row: It is a Number that denotes the row ID of the row.
• 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.

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

Example 1:

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 < 5; c++) {

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

  showTable();
}

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

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

  // 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,
           100 + 20 * r);
    }
  }
}

Output:

Example 2:

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, r + " " + c);
    }
  }

  showTable();
}

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

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

  showTable();
}

function showTable() {
  clear();
   text("Click on the button to set the" +
       " values of the table", 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.Table/set