count-smiley-faces/index.js
2024-08-08 13:59:50 +08:00

9 lines
360 B
JavaScript

function countSmileys(arr) {
const smileyPattern = /^[:;][-~]?[)D]$/;
return arr.filter((face) => smileyPattern.test(face)).length;
}
// Test cases
console.log(countSmileys([":)", ";(", ";}", ":-D"])); // Output: 2
console.log(countSmileys([";D", ":-(", ":-)", ";~)"])); // Output: 3
console.log(countSmileys([";]", ":[", ";*", ":$", ";-D"])); // Output: 1