The getRowCount() method of p5.Table in p5.js is used to return the total number of rows in a table object.
Syntax:
getRowCount()
Parameters: This function does not accept any parameters.
Return Value: It returns an integer value which specifies the number of rows in the table.
Below example illustrates the getRowCount() method in p5.js:
Example:
let rowCount = 1; function setup() { createCanvas(500, 400); textSize(16); addRowBtn = createButton("Add Row"); addRowBtn.position(30, 50); addRowBtn.mouseClicked(addOneRow); removeRowBtn = createButton("Clear Last Row"); removeRowBtn.position(160, 50); removeRowBtn.mouseClicked(clearLastRow); // Create the table table = new p5.Table(); // Add columns table.addColumn("book"); table.addColumn("price"); // Display the table showTable(); } function addOneRow() { let newRow = table.addRow(); newRow.set('book', "Book " + rowCount); newRow.set('price', "Price " + (rowCount * random(1, 10)).toFixed(1)); rowCount++; showTable(); } function clearLastRow() { let lastRow = table.getRowCount() - 1; if (lastRow >= 0) table.removeRow(lastRow); showTable(); } function showTable() { clear(); text("Click on the buttons to change" + " the number of rows in the table", 20, 20); // Get the number of rows in the table let rowCount = table.getRowCount(); // Display the total rows // present in the table text("There are " + rowCount + " rows in the table", 20, 100); // Show all the rows currently // present in the table for (let r = 0; r < rowCount; r++) { let currRow = table.rows[r].arr.toString(); currRow = currRow.split(", ").join(" "); text(currRow, 30, 140 + r * 20); } } |
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/getRowCount
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