The getNum() method of p5.TableRow in p5.js is used to retrieve a Float value from the given column of the table row. The column can be specified by its column ID or column name.
Syntax:
getNum( column )
Parameters: This method accepts a single parameter as mentioned above and described below:
- column: It is a String or Number that denotes the column name or ID of the column.
Return Value: This method returns a Floating value retrieved from the given column of the table.
The example below illustrate the getNum() method in p5.js:
Example:
Javascript
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, 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); } } } |
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/getNum
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