The setString() method of p5.TableRow in p5.js is used to store the given String value to the given column of the table row. The column can be specified by its column ID or column name.
Syntax:
setString( 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 that specifies the value that has to be stored.
The example below illustrates the setString() method in p5.js:
Example 1:
javascript
function setup() { createCanvas(500, 300); textSize(18); text("Click the button to modify the table", 20, 20); setBtn = createButton("Change Status"); setBtn.position(30, 60); setBtn.mouseClicked(modifyTableData); // Create the table table = new p5.Table(); // Add the columns and rows table.addColumn("destination"); table.addColumn("visited"); // Add information to each column // using the setString() method let row = table.addRow(); row.setString("destination", "Japan"); row.setString("visited", "Yes"); row = table.addRow(); row.setString("destination", "Malaysia"); row.setString("visited", "No"); row = table.addRow(); row.setString("destination", "Switzerland"); row.setString("visited", "No"); row = table.addRow(); row.setString("destination", "Venice"); row.setString("visited", "No"); showTable(); } function modifyTableData() { // Loop through all the rows // in the table for (let r = 0; r < table.getRowCount(); r++) { // Get a row from the table let tableRow = table.rows[r]; // Change the string of the visited // column of the table row if (tableRow.getString("visited") == "No") tableRow.setString("visited", "Yes"); } showTable(); } function showTable() { clear(); text("The value is modified using the " + "setString() method", 20, 20); // Show all the columns present for (let c = 0; c < 2; c++) { text(table.columns, 20 + 160 * c, 110); } // Show all the rows currently // present in the table for (let r = 0; r < table.getRowCount(); r++) { for (let c = 0; c < 2; c++) { text(table.getString(r, c), 20 + 160 * c, 140 + 20 * r); } } } |
Output:
Example 2:
javascript
function setup() { createCanvas(500, 300); textSize(18); setBtn = createButton("Toggle Strings"); setBtn.position(30, 40); setBtn.mouseClicked(modifyTableData); // Create the table table = new p5.Table(); for (let i = 0; i < 10; i++) { table.addColumn(); table.addRow(); } createTable(); } function createTable() { // Loop through all the rows and columns // in the table and set their initial values for (let r = 0; r < table.getRowCount(); r++) { for (let c = 0; c < table.getColumnCount(); c++) { // Get a row from the table let tableRow = table.rows[r]; if ((r + c) % 3 == 0) // Set the column to the given value tableRow.setString(c, "*"); else // Set the column to the given value tableRow.setString(c, "~"); } } showTable(); } function modifyTableData() { // Loop through all the rows and columns // in the table and change their values // depending on the previous string for (let r = 0; r < table.getRowCount(); r++) { for (let c = 0; c < table.getColumnCount(); c++) { // Get a row from the table let tableRow = table.rows[r]; if (tableRow.getString(c) == "~") // Set the column to the given value tableRow.setString(c, "*"); else // Set the column to the given value tableRow.setString(c, "~"); } } showTable(); } function showTable() { clear(); text("The value is modified using the " + "setString() method", 20, 20); // Show all the rows currently // present in the table for (let r = 0; r < table.getRowCount(); r++) { for (let c = 0; c < table.getColumnCount(); c++) { text(table.getString(r, c), 20 + 40 * 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/setString
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