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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