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p5.js NumberDict maxValue() Method

The maxValue() method of p5.NumberDict in p5.js is used to find the highest value in a number dictionary. A number dictionary can store multiple key-value pairs.

Syntax:

maxValue()

Parameters: This method does not accept any parameters.

Return Value: It returns a Number value that is the highest value in the dictionary.

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

Example:

Javascript




function setup() {
  createCanvas(550, 300);
  textSize(16);
  
  text("Click on the button to create a new " +
       "dictionary and get the highest value",
       20, 20);
  
  setBtn = 
    createButton("Create random dictionary");
  setBtn.position(30, 40);
  setBtn.mouseClicked(createNewDict);
  
  getBtn = 
    createButton("Get highest Value");
  getBtn.position(300, 40);
  getBtn.mouseClicked(getHighestValue);
}
  
function createNewDict() {
  clear();
  
  // Create an object with random values
  let obj = {};
  for (let i = 0; i < 5; i++) {
    let rk = ceil(Math.random() * 100);
    let rn = floor(Math.random() * 100);
    rn = (rk > 25) ? rn : -rn;
  
    obj[rk] = rn;
  
    text("Key: " + rk + " : Value: " +
         rn, 40, 120 + 20 * i);
  }
  
  // Create a dictionary using the above values
  numDict = createNumberDict(obj);
  
  text("New Dictionary created with values",
       20, 80);
  
  text("Click on the button to create a new " +
       "dictionary and get the highest value",
       20, 20);
}
  
function getHighestValue() {
  
  // Get the highest value in the dictionary
  let highestVal = numDict.maxValue();
  
  // Display the highest value
  text("The highest value in the dictionary is: " +
       highestVal, 20, 240);
  
  text("Click on the button to create a new " +
       "dictionary and get the highest value",
       20, 20);
}


Output:

Online editor: https://editor.p5js.org/
Environment Setup: https://www.geeksforgeeks.org/p5-js-soundfile-object-installation-and-methods/
Reference: https://p5js.org/reference/#/p5.NumberDict/maxValue

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