The setNum() method of p5.Table in p5.js is used to store the given Float value to the given row and column of the table. The row can be specified by the row ID and the column can be specified by its column ID or column name.
Syntax:
setNum( row, column, value )
Parameters: This function accepts three parameters as mentioned above and described below:
- row: It is a Number that denotes the row ID of the row.
- column: It is a String or Number that denotes the column name or ID of the column.
- value: It is a Number that specifies the value that has to be stored.
Below example illustrates the setNum() method in p5.js:
Example:
function setup() { createCanvas(500, 300); textSize(18); text("Enter the index of the table" + " to be modified", 20, 20); rowInput = createInput(); rowInput.size(30); rowInput.position(30, 40); colInput = createInput(); colInput.size(30); colInput.position(80, 40); setBtn = createButton("Modify Given Row and Column"); setBtn.position(30, 80); setBtn.mouseClicked(modifyTableData); // Create the table table = new p5.Table(); // Add 5 columns and rows to the table for (let i = 0; i < 4; i++) { table.addColumn("Column " + i); table.addRow(); } setTableData(); } function modifyTableData() { givenRow = int(rowInput.value()); givenCol = int(colInput.value()); if (givenRow < table.getRowCount() && givenCol < table.getColumnCount()) // Set a number value to the given // row and column table.setNum(givenRow, givenCol, -999); showTable(); } function setTableData() { for (let r = 0; r < 4; r++) { for (let c = 0; c < 4; c++) { // Set the value at the given // column and row of the table table.set(r, c, r + " " + c); } } showTable(); } function showTable() { clear(); text("The value is modified using" + " the setNum() method", 20, 20); // Show all the columns present for (let c = 0; c < 4; c++) { text(table.columns, 20 + 100 * c, 120); } // Show all the rows currently // present in the table for (let r = 0; r < 4; r++) { for (let c = 0; c < 4; c++) { text(table.getString(r, c), 20 + 100 * c, 140 + 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.Table/setNum
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