7. Operator - Coding Challenge

Question 1

1. Declare a variable ‘numNeighbours’ based on a prompt input like this: prompt(‘How many neighbour countries does your country have?’);
2. If there is only 1 neighbour, log to the console ‘Only 1 border!’ (use loose equality == for now)
3. Use an else-if block to log ‘More than 1 border’ in case ‘numNeighbours’ is greater than 1
4. Use an else block to log ‘No borders’ (this block will be executed when ‘numNeighbours’ is 0 or any other value).
5. Test the code with different values of’numNeighbours’, including 1 and 0.
6. Change == to ===, and test the code again, with the same values of ‘numNeighbours’. Notice what happens when there is exactly 1 border! Why is this happening?
7. Finally, convert ‘numNeighbours’ to a number, and watch what happens now when you input 1.
8. Reflect on why we should use the === operator and type conversion in this situation

Answer 1

const numNeighbours = prompt(
1. 'How many neighbour countries does your country have?',
);
// LATER : This helps us prevent bugs

const numNeighbours = Number(prompt('How many neighbour countries does your country have?'),
);

if (numNeighbours === 1) {
console.log('Only 1 border!');
} else if (numNeighbours > 1) {
console.log('More than 1 border');
} else {
console.log('No borders');
}

Question 2

1. Comment out the previous code so the prompt doesn’t get in the way
2. Let’s say Sarah is looking for a new country to live in. She wants to live in a country that speaks english, has less than 50 million people and is not an island.
3. Write an if statement to help Sarah figure out if your country is right for her. You will need to write a condition that accounts for all of Sarah’s criteria. Take
   your time with this, and check part of the solution if necessary.
4. If yours is the right country, log a string like this: ‘You should live in Portugal :)’. If not, log ‘Portugal does not meet your criteria :(‘
5. Probably your country does not meet all the criteria. So go back and temporarily change some variables in order to make the condition true (unless you live in
   Canada :D)

Answer 2

if (language === ‘english’ && population < 50 && !isIsland)
{
console.log(You should live in ${country} :));
} else {
console.log(${country} does not meet your criteria :();
}