I use JS since almost a decade and only got half of them right. Specifically I failed at the last one because I got impatient, the octal one got me too (never u

I use JS since almost a decade and only got half of them right. Specifically I failed at the last one because I got impatient, the octal one got me too (never use those in JS), the true++ and the ones that require you to know that arrays are converted to strings when used in arithmetic. I'll just externalize my embarrassment and say that JS is indeed weird! Another excuse is that I typically try to avoid implicit type conversion except for idiomatic "tricks" such as using !! to convert to a boolean. Cool website though!