Hint
String comparison is lexicographic (char by char). null equality is special — it only equals undefined.
console.log('10' > '9');
console.log('10' > 9);
console.log(null > 0);
console.log(null == 0);
console.log(null >= 0);false true false false true
Explanation: "10">"9": string comparison — "1" vs "9" by char code, "1"<"9" so false. "10">9: string vs number, "10"→10, 10>9=true. null: null==0 is false (special rule). null>=0 is true (numeric: 0>=0). null>0 is false (numeric: 0>0).
Key Insight: String comparison is lexicographic (char by char). null equality is special — it only equals undefined.