p5.js TypedDict set() Method

The set() method of p5.TypedDict in p5.js is used to add or modify the value at the given key of the dictionary. A key-value pair is a set of two values that are mapped to each other. These values can be accessed by querying this dictionary using the key portion of the pair. A typed dictionary can store multiple key-value pairs that can be accessed using the methods of the dictionary.

Syntax:

set( key, value )

Parameters: This method accepts two parameters as shown above and discussed below:

key: This is a number or string that denotes the key that has to be added to the dictionary.
value: This is a number or string that denotes the value that has to be added to the dictionary.

The example below illustrates the set() method in p5.js:

Example:

Javascript

function setup() {
  createCanvas(550, 300);
  textSize(16);
  
  // Create an empty dictionary
  let stringDict = 
      createStringDict({});
  text("New empty string dictionary created",
       20, 20);
  
  // Get the value at the given key
  let valOne = stringDict.get('Apple');
  text("The value at key 'Apple': " +
       valOne, 20, 60);
  
  // Add the given key to the dictionary
  // specifying the key and value
  stringDict.set('Apple', '$340 billion');
  
  text("New key 'Apple' added with " +
       "set() method", 20, 100)
  
  // Get the value at the given key
  valOne = stringDict.get('Apple');
  text("The value at key 'Apple': " +
       valOne, 20, 140);
  
  // Change the value of an already set key
  stringDict.set('Apple', '$352 billion');
  
  text("Value at key 'Apple' modified using " +
       "the set() method", 20, 180)
  
  // Get the value at the given key
  valOne = stringDict.get('Apple');
  text("The value at key 'Apple': " +
       valOne, 20, 220);
}