p5.js Table getRows()用法及代码示例

function setup() { 
    createCanvas(500, 400); 
    textSize(16); 
  
    text("Click on the button to display" + 
        "all the rows in the table", 20, 20); 
  
    getColBtn = createButton("Show all rows"); 
    getColBtn.position(30, 50); 
    getColBtn.mouseClicked(showAllRows); 
  
    // Create the table 
    table = new p5.Table(); 
  
    // Add two columns 
    table.addColumn("movie"); 
    table.addColumn("rating"); 
    table.addColumn("price"); 
  
    // Add 10 randomly generated rows 
    for (let i = 0; i < 10; i++) { 
        let newRow = table.addRow(); 
        newRow.setString("movie", 
            "Movie " + floor(random(1, 100))); 
        newRow.setString("rating", 
            floor(random(1, 5))); 
        newRow.setString("price", 
            "$" + floor(random(10, 100))); 
    } 
} 
  
function showAllRows() { 
    clear(); 
  
    let currentRows = table.getRows(); 
  
    // Display the total rows 
    // present in the table 
    text("There are " + 
        currentRows.length + 
        " rows in the table", 20, 100); 
  
    for (let r = 0; r < currentRows.length; r++) 
        text(currentRows[r].arr.toString(), 
            20, 140 + r * 20); 
  
    text("Click on the button to display" + 
        "all the rows in the table", 20, 20); 
}