p5.TableRow getNum() Method
Last Updated :
18 Sep, 2020
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);
table = new p5.Table();
setTableData();
}
function setTableData() {
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++) {
table.set(r, c, r * 100 + c);
}
}
}
function showTable() {
clear();
text( "The values of the table are " +
"retrieved using the getNum() method" ,
20, 20);
for (let c = 0; c < 5; c++) {
text(table.columns,
20 + 100 * c, 80);
}
for (let r = 0; r < 5; r++) {
let tableRow = table.rows[r];
for (let c = 0; c < 5; c++) {
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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