Learn Basic Algorithmic Thinking by Building a Number Sorter

JavaScript
1

can someone explane how foreach parameters work ,i mean if they are local variables they should still be assigned to a value
what i mean is how can foreach method know that num is number and i is the index

const updateUI = (array = []) => {
  array.forEach((num, i) => {
    const outputValueNode = document.getElementById(`output-value-${i}`);
    outputValueNode.innerText = num;
  })
}
2

because it was coded that way. And if you want to know what parameters a built-in function takes you can look at the documentation

3

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