The nf() function in p5.js is used to format the input numbers (integers or floats) into strings.
Syntax:
nf(Num/Arr, Left, Right)
Parameters: This function accepts three parameters as mentioned above and described below:
- Num/Arr: This parameter holds the input positive number or an array of numbers which are to be formatted.
- Left: This is the positive number which says the number of digits should be on the left side of the decimal point.
- Right: This is the positive number which says the number of digits should be on the right side of the decimal point.
Return Value: It returns the formatted string.
Below programs illustrate the nf() function in p5.js:
Example 1: This example uses nf() function to format the input numbers into strings.
function setup() {
// Creating Canvas size
createCanvas(450, 200);
} function draw() {
// Set the background color
background(220);
// Initializing the Numbers
let num1 = 345;
let num2 = 12.3;
let num3 = .5;
let num4 = .05;
let num5 = 0;
let num6 = 0.7;
// Calling to nf() function.
let A = nf(num1, 4, 3);
let B = nf(num2, 4, 2);
let C = nf(num3, 5, 3);
let D = nf(num4, 2, 3);
let E = nf(num5, 2, 2);
let F = nf(num6, 4, 3);
// Set the size of text
textSize(16);
// Set the text color
fill(color( 'red' ));
// Getting formatted String
text( "Formatted String is: " + A, 50, 30);
text( "Formatted String is: " + B, 50, 60);
text( "Formatted String is: " + C, 50, 90);
text( "Formatted String is: " + D, 50, 110);
text( "Formatted String is: " + E, 50, 140);
text( "Formatted String is: " + F, 50, 170);
} |
Output:
Example 2: This example uses nf() function to format the input numbers into strings.
function setup() {
// Creating Canvas size
createCanvas(450, 90);
} function draw() {
// Set the background color
background(220);
// Initializing the array of numbers
let num1 = [345, 0, 2];
let num2 = [12.3, .4, 2.0];
// Calling to nf() function.
let A = nf(num1, 4, 3);
let B = nf(num2, 4, 2);
// Set the size of text
textSize(16);
// Set the text color
fill(color( 'red' ));
// Getting formatted String
text( "Formatted String is: " + A, 50, 30);
text( "Formatted String is: " + B, 50, 60);
} |
Output:
Reference: https://p5js.org/reference/#/p5/nf