Chapter 2: Program Structure

Question 1

Two keywords to declare a binding (and their difference)

Answer 1

let
const

let creates a changeable binding, const an unchangeable one

Question 2

if/else syntax

Answer 2

if( condition ){
true block
} else if ( condition ) {
false true block
} else {
false false block
}

Question 3

while syntax

Answer 3

while ( condition ){
block
}

Question 4

do syntax

Answer 4

do{
block
} while (condition)

Question 5

Main difference between while and do

Answer 5

The code block within the do always executes at least once

Question 6

for syntax

Answer 6

for (let counter = #; condition; update counter){
block
}

Question 7

Command to stop a loop even when the while condition is still true

Answer 7

break

Question 8

Command to skip the rest of the loop block and start the next iteration

Answer 8

continue

Question 9

Four shortcuts to update number bindings

Answer 9

binding += #
binding *= #
binding++
binding–

Question 10

switch syntax

Answer 10

switch(statement){
case value:
statements;
break;
case value:
statements;
break;
etc…
default:
statements;
break;
}

Question 11

switch behavior with break

Answer 11

1. evaluation starts at the case with a matching value (or the default)
2. evaluation continues across all cases until a “break” is reached