/ Create a new set with some initial values const words = new Set(['bob', 'john', 'marry', 'hilton', 'bala']); // Add some more values ('rick', 'newton', 'bala') to the set // Check if 'hilton' is in the set // Get the size of the set // Delete 'rick' from the set // Convert the set to an array //Print the set // Set {'bob', 'john', 'marry', 'hilton', 'bala', 'newton'} //Print the result to check if 'hilton' is in the set // true //Print the size of the set // 7 //Print the array // ['bob', 'john', 'marry', 'hilton', 'bala', 'newton']
/ Create a new set with some initial values const words = new Set(['bob', 'john', 'marry', 'hilton', 'bala']); // Add some more values ('rick', 'newton', 'bala') to the set // Check if 'hilton' is in the set // Get the size of the set // Delete 'rick' from the set // Convert the set to an array //Print the set // Set {'bob', 'john', 'marry', 'hilton', 'bala', 'newton'} //Print the result to check if 'hilton' is in the set // true //Print the size of the set // 7 //Print the array // ['bob', 'john', 'marry', 'hilton', 'bala', 'newton']
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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Question
Javascript
==========================================================================
===========================================================================
// Create a new set with some initial values
const words = new Set(['bob', 'john', 'marry', 'hilton', 'bala']);
// Add some more values ('rick', 'newton', 'bala') to the set
// Check if 'hilton' is in the set
// Get the size of the set
// Delete 'rick' from the set
// Convert the set to an array
//Print the set
// Set {'bob', 'john', 'marry', 'hilton', 'bala', 'newton'}
//Print the result to check if 'hilton' is in the set
// true
//Print the size of the set
// 7
//Print the array
// ['bob', 'john', 'marry', 'hilton', 'bala', 'newton']
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Follow-up Question
Size not printing seven after deleting rick
// Create a new set with some initial values
const words = new Set(['bob', 'john', 'marry', 'hilton', 'bala']);
// Add some more values ('rick', 'newton', 'bala') to the set
words.add('rick');
words.add('newton');
words.add('bala');
// Check if 'hilton' is in the set
words.has('hilton');
// Get the size of the set
words.size;
// Delete 'rick' from the set
words.delete('rick');
// Convert the set to an array
const wordsArray = Array.from(words);
//Print the set
console.log(words);
//Print the result to check if 'hilton' is in the set
console.log(words.has('hilton'));
// print the size of the set
console.log(words.size);
//Print the array
console.log(wordsArray);
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