Self-check quiz

1. Can you use const and update values within an array?
2. Which property in an array gives the number of items contained in the array?
3. What is the output in the console?

   const myArr1 = [1,3,5,6,8,9,15];
   console.log(myArr1.indexOf(0));
   console.log(myArr1.indexOf(3));
   

4. How do you replace the second element in an array myArr = [1,3,5,6,8,9,15] with the value 4?
5. What is the output in the console?

   const myArr2 = [];
   myArr2[10] = 'test'
   console.log(myArr2);
   console.log(myArr2[2]);
   

6. What is the output in the console?

   const myArr3 = [3,6,8,9,3,55,553,434];
   myArr3.sort();
   myArr3.length = 0;
   console.log(myArr3[0]);