📜  p5.js | int()函数

📅  最后修改于: 2022-05-13 01:56:49.611000             🧑  作者: Mango

p5.js | int()函数

p5.js 中的int()函数用于将给定的布尔值、整数和浮点值转换为其整数表示形式。

句法:

int(ns)

或者

int(n, radix)

参数:此函数接受以下三种类型的参数:

  • n:存放需要转换成整数的值。 n 的可能值是字符串、布尔值或数字。
  • radix:存储数字转换成的小数部分。
  • ns:它将不同类型的元素存储到数组中。

返回值:它返回转换后的整数表示。
以下程序说明了 p5.js 中的 int()函数:
示例 1:此示例使用 int()函数将输入值转换为其整数值。

javascript
function setup() {
  
    // Creating Canvas size
    createCanvas(600, 160);
}
  
function draw() {
      
    // Set the background color
    background(220);
    
    // Initializing some strings
    let Value1 = 12;
    let Value2 = 12.5;
    let Value3 = -7.9;
    let Value4 = -6;
    let Value5 = "6";
    
    // Calling to int() function.
    let A = int(Value1);
    let B = int(Value2);
    let C = int(Value3);
    let D = int(Value4);
    let E = int(Value5);
      
    // Set the size of text
    textSize(16);
      
    // Set the text color
    fill(color('red'));
    
    // Getting integer representation
    text("Integer representation of value 12 is: " + A, 50, 30);
    text("Integer representation of value 12.5 is: " + B, 50, 60);
    text("Integer representation of value -7.9 is: " + C, 50, 90);
    text("Integer representation of value -6 is: " + D, 50, 110);
    text("Integer representation of string '6' is: " + E, 50, 140);
}


javascript
function setup() {
  
    // Creating Canvas size
    createCanvas(600, 140);
}
  
function draw() {
      
    // Set the background color
    background(220);
    
    // Initializing some values
    let Value1 = true;
    let Value2 = false;
    let Value3 = "Geeks";
    let Value4 = [12, 3.6, -9.8, true, false, "Geeks"];
    
    // Calling to int() function.
    let A = int(Value1);
    let B = int(Value2);
    let C = int(Value3);
    let D = int(Value4);
      
    // Set the size of text
    textSize(16);
      
    // Set the text color
    fill(color('red'));
    
    // Getting integer representation
    text("Integer representation of value 'true' is: " + A, 50, 30);
    text("Integer representation of value 'false' is: " + B, 50, 60);
    text("Integer representation of value 'Geeks' is: " + C, 50, 90);
    text("Integer representation of array of values are: " + D, 50, 110);
}


输出:

示例 2:此示例使用 int()函数将输入值转换为其整数值。

javascript

function setup() {
  
    // Creating Canvas size
    createCanvas(600, 140);
}
  
function draw() {
      
    // Set the background color
    background(220);
    
    // Initializing some values
    let Value1 = true;
    let Value2 = false;
    let Value3 = "Geeks";
    let Value4 = [12, 3.6, -9.8, true, false, "Geeks"];
    
    // Calling to int() function.
    let A = int(Value1);
    let B = int(Value2);
    let C = int(Value3);
    let D = int(Value4);
      
    // Set the size of text
    textSize(16);
      
    // Set the text color
    fill(color('red'));
    
    // Getting integer representation
    text("Integer representation of value 'true' is: " + A, 50, 30);
    text("Integer representation of value 'false' is: " + B, 50, 60);
    text("Integer representation of value 'Geeks' is: " + C, 50, 90);
    text("Integer representation of array of values are: " + D, 50, 110);
} 

输出:

注意:从上面的程序中,如果参数的值是数字,那么它以整数表示形式返回输出,对于 false 它返回 0,对于 true 它返回 1,对于字符串值,它返回 NaN,即不是数字。

参考: https://p5js.org/reference/#/p5/int