Javascript Specific

Question 1

What is the time complexity of trim()?

Answer 1

o(n)

Question 2

What time complexity is split()

Answer 2

o(n)

Question 3

What time complexity is .sort()

Answer 3

o(n log n)

Question 4

what time complexity is map()

Answer 4

o(n)

Question 5

What is the method and regex for removing all characters from a string but letters

Answer 5

.replace(/[^a-zA-Z]/g, “”)

Question 6

How do you a do a destructuring swap

Answer 6

for(let i = 0; i < matrix.length; i++) {
for(let j = i; j < matrix[0].length; j++) {
[matrix[i][j], matrix[j][i]] = [matrix[j][i], matrix[i][j]]
}
}