p5.js | str()函数
p5.js 中的str()函数用于将给定的布尔值、字符串和数字值转换为其字符串表示形式。
句法:
str(value)
参数:此函数接受单个参数值,将其转换为其字符串表示形式。该值可能是整数、浮点数、字符串、布尔值、负值或正值以及值数组。
返回值:它返回转换后的字符串表示。
下面的程序说明了 p5.js 中的 str()函数:
示例 1:此示例使用 str()函数将给定的输入值转换为其对应的字符串表示形式。
function setup() {
// Creating Canvas size
createCanvas(600, 160);
}
function draw() {
// Set the background color
background(220);
// Initializing some values
let Value1 = 12;
let Value2 = 12.5;
let Value3 = -7.9;
let Value4 = -6;
let Value5 = "6";
// Calling to str() function.
let A = str(Value1);
let B = str(Value2);
let C = str(Value3);
let D = str(Value4);
let E = str(Value5);
// Set the size of text
textSize(16);
// Set the text color
fill(color('red'));
// Getting string representation
text("String representation of value 12 is: " + A, 50, 30);
text("String representation of value 12.5 is: " + B, 50, 60);
text("String representation of value -7.9 is: " + C, 50, 90);
text("String representation of value -6 is: " + D, 50, 110);
text("String representation of string '6' is: " + E, 50, 140);
}
输出:
示例 2:此示例使用 str()函数将给定的输入值转换为其对应的字符串表示形式。
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 str() function.
let A = str(Value1);
let B = str(Value2);
let C = str(Value3);
let D = str(Value4);
// Set the size of text
textSize(16);
// Set the text color
fill(color('red'));
// Getting string representation
text("String representation of value 'true' is: " + A, 50, 30);
text("String representation of value 'false' is: " + B, 50, 60);
text("String representation of value 'Geeks' is: " + C, 50, 90);
text("String representation of array of values are: " + D, 50, 110);
}
输出:
参考: https://p5js.org/reference/#/p5/str