JS-Intermidiate

Why Javascript is considered to be synchronous?

• Because it's single threaded

• Because it can only executed one line of code at a time

• It cannot multi-task and move on to the next line or block of code until the current line or block has been executed

How to make our code behave asynchronously?

• Use syncronous callback function

• Use asyncronous callback function

• Use function

Why function is an object?

• Functions can be stored in variables

• Can pass a function as an input to another function

• return a function ,from a function

What is higer-order function?

• The function that accepts another function as an argument

• The function that is passed as an argument to another function

Choose which ways we can make a callback function

• Named callback function

• Anonymous callback function

• Named variable

Is the following statement true or false?

"A while loop will execute for as till a conditional statement becomes false"

• true

• false

What is the length of this array: [1,2,3,4,5,6,7]

• 8

• 7

• 6

• 9

Which of these is not a type of loop in JS?

• while

• for

• repeat

Let's say you have an x variable that starts as 0. If you want your while loop to stop once the x variable equals 400, what condition would you use?

• x<400

• x>400

• x==400

• x>=400

Let's say you want to repeat a shape 20 times. Which for loop would help you code that?

• for (var i=1; i<20; i++){}

• for (var i=0; i<=20; i++){}

• for (var i=0; i<20; i++){}

• for (var i=0; i>20; i++){}