JavaScript Brain Teasers

Puzzle 1

Your Code Deserves a Lift

your_code_deserves_a_lift/your_code_deserves_a_lift.js

let temp = 25;

function displayTemperature() {
  console.log(`Current temperature: ${temp} °C`);
}

function forecastTemperature() {
  console.log(`Expected temperature: ${temp} °C`);
  var temp = 28;
}

displayTemperature();
forecastTemperature();

Guess the Output
	Try to guess what the output is before moving to the next page.

You might have expected the output to be:

Current temperature: 25 °C
Expected temperature: 25 °C

But this ...