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p5.js TypedDict clear() Method

  • Last Updated : 25 Nov, 2020

The clear() method of p5.TypedDict in p5.js is used to remove all the key-value pairs in the typed 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.


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Parameters: This method does not accept any parameters.

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



function setup() {
  createCanvas(550, 500);
  let tmpObj = {
    "Statue of Unity": "182 m",
    "Spring Temple Buddha": "128 m",
    "Ushiku Daibutsu": "100 m",
    "Great Buddha of Thailand": "92m"
  // Create a new dictionary
  let stringDict =
  text("New string dictionary created " +
       "with four keys", 20, 40);
  // Check for a key
  let existOne = 
      stringDict.hasKey('Spring Temple Buddha');
  text("Dictionary has key " +
       "'Spring Temple Buddha': " +
       existOne, 20, 80);
  // Check the current size
  let currSize = stringDict.size();
  text("Current size of the dictionary: " +
       currSize, 20, 100);
  // Clear the dictionary
  text("Dictionary has been cleared!",
       20, 140);
  // Check for a key again
  existOne =
    stringDict.hasKey('Spring Temple Buddha');
  text("Dictionary has key " +
       "'Spring Temple Buddha': " +
       existOne, 20, 180);
  // Check the current size again
  currSize = stringDict.size();
  text("Current size of the dictionary: " +
       currSize, 20, 200);


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