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p5.js | arrayCopy() function

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  • Last Updated : 16 Aug, 2021
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The arrayCopy() function in p5.js is used to copy a part of source array elements to another destination array. This function is depreciated from future versions. 
 

Syntax:  

arrayCopy( src, src_pos, dst, dst_pos, length )

Parameters: This function accepts five parameters as mentioned above and described below:  

  • src: This is the source array whose elements to be copied into another array.
  • src_pos: This is the position of source array elements from where the element is copied.
  • dst: This is the destination array where copied source array element is to be pasted.
  • dst_pos: This is the position of destination array where source array element is to be pasted.
  • length: This is the number of elements to be copied from source array.

Return Value: It returns a new copied destination array.
Below programs illustrate the arrayCopy() function in p5.js:
Example 1: This examples uses arrayCopy() function to copy source array elements to destination array. 

javascript




function setup() {
  
    // Creating Canvas of given size
    createCanvas(500, 90);
}
  
function draw() {
      
    // Set the background color
    background(220);
      
    // Initializing the source array
    let src = ['IT', 'CSE', 'ECE'];
    
    // Initializing the source array position
    // from where the elements are to be copied.
    let src_pos = 1;
    
    // Initializing the destination array
    let dst = ['Ram', 'Shyam', 'Geeta'];
      
    // Initializing the destination position
    // where copied elements are to be pasted.
    let dst_pos = 0;
    
    // Initializing the number of source array elements
    // which are to be copied.
    let length = 2;
    
    // Calling to arrayCopy() function.
    arrayCopy(src, src_pos, dst, dst_pos, length);
      
    // Set the size of text
    textSize(16);
      
    // Set the text color
    fill(color('red'));
    
    // Getting new destination array
    text("New destination array is : " + dst, 50, 30);
               
}


Output: 
 

Example 2: This examples uses arrayCopy() function to copy source array elements to destination array. 
 

javascript




function setup() {
  
    // Creating Canvas of given size
    createCanvas(500, 90);
}
  
function draw() {
      
    // Set the background color
    background(220);
      
    // Initializing the source array
    let src = ['geeks', 'Students', 'Teachers'];
    
    // Initializing the source array position
    // from where the elements are to be copied.
    let src_pos = 2;
    
    // Initializing the destination array
    let dst = ['A', 'B', 'C'];
      
    // Initializing the destination position
    // where copied elements are to be pasted.
    let dst_pos = 1;
    
    // Initializing the number of source array elements
    // which are to be copied.
    let length = 1;
  
    // Calling to arrayCopy() function
    arrayCopy(src, src_pos, dst, dst_pos, length);
      
    // Set the size of text
    textSize(16);
      
    // Set the text color
    fill(color('red'));
    
    // Getting new destination array
    text("New destination array is : " + dst, 50, 30);
}


Output: 
 

Reference: https://p5js.org/reference/#/p5/arrayCopy
 


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