What does this log?

console.log("red, green, red".replace(/red/, "RED"), "red, green, red".replace(/red/g, "RED"));

1. red, green, red RED, green, RED
2. RED, green, RED RED, green, RED
3. RED, green, red RED, green, RED
4. RED, green, red RED, green, red

What does this log?

const word = "caf\u00e9";
console.log(word.match(/\w+/)[0].length, word.match(/\p{L}+/u)[0].length);

1. 3 3
2. 4 3
3. 4 4
4. 3 4

What does this log?

console.log(/3.14/.test("3514"), /3\.14/.test("3514"), /3\.14/.test("3.14"));

1. true false true
2. true true true
3. false false true
4. false false false

What does this log?

console.log("Give 100%!".match(/\W/g));

1. ["G", "i", "v", "e"]
2. [" ", "%", "!"]
3. ["%", "!"]
4. ["1", "0", "0"]

/\d{5}/ accepts "my zip is 212019999 thanks" as a zip code, which is why validation patterns need ^ and $.

1. True
2. False