Basic javascript - correction to recursion guide

[ahmad.s.soliman]

Hello, in the following guide:

freeCodeCamp Challenge Guide: Use Recursion to Create a Countdown

Use Recursion to Create a Countdown Solutions

Solution 1 (Click to Show/Hide)

function countdown(n) { if (n < 1) { return []; } else { const arr = countdown(n - 1); arr.unshift(n); return arr; } }

Solution 2 (Click to Show/Hide)

function countdown(n) { if (n < 1) { return []; } else { const arr = countdown(n - 1); arr.splice(0, 0, n); return arr; } }

Solution 3 (Click to Show/Hide)

function countdown(n){ return n < 1 ? [] : [n].concat(countdo…

the function call precedence is now 17 not 20.