03-bollywood-title-fixer.js

JavaScript
1/**
2 * 🎬 Bollywood Movie Title Fixer
3 *
4 * Pappu ne ek movie database banaya hai lekin usne saare titles galat type
5 * kar diye - kuch ALL CAPS mein, kuch all lowercase mein, kuch mein extra
6 * spaces hain. Tu fix kar de titles ko proper Title Case mein!
7 *
8 * Rules:
9 *   - Extra spaces hatao: leading, trailing, aur beech ke multiple spaces ko
10 *     single space banao
11 *   - Har word ka pehla letter uppercase, baaki lowercase (Title Case)
12 *   - EXCEPTION: Chhote words jo Title Case mein lowercase rehte hain:
13 *     "ka", "ki", "ke", "se", "aur", "ya", "the", "of", "in", "a", "an"
14 *     LEKIN agar word title ka PEHLA word hai toh capitalize karo
15 *   - Hint: Use trim(), split(), map(), join(), charAt(), toUpperCase(),
16 *     toLowerCase(), slice()
17 *
18 * Validation:
19 *   - Agar input string nahi hai, return ""
20 *   - Agar string trim karne ke baad empty hai, return ""
21 *
22 * @param {string} title - Messy Bollywood movie title
23 * @returns {string} Cleaned up Title Case title
24 *
25 * @example
26 *   fixBollywoodTitle("  DILWALE   DULHANIA   LE   JAYENGE  ")
27 *   // => "Dilwale Dulhania Le Jayenge"
28 *
29 *   fixBollywoodTitle("dil ka kya kare")
30 *   // => "Dil ka Kya Kare"
31 */
32export function fixBollywoodTitle(title) {
33  if(typeof title !== "string" || title.trim().length === 0){
34    return ""
35  }
36  
37  const chhoteWords = ["ka", "ki", "ke", "se", "aur", "ya", "the", "of", "in", "a", "an"]
38  const arrayOfTitle = title.split(" ").map((t)=> t.trim().toLowerCase())
39
40  const UppercaseArray = arrayOfTitle.map((t,id) => {
41    return id === 0? t.charAt(0).toUpperCase()+t.slice(1) : chhoteWords.includes(t)?t: t.charAt(0).toUpperCase()+t.slice(1)
42  })
43  const RemoveEmptySpace = UppercaseArray.filter(t => t.length !== 0)
44  const finalTitle = RemoveEmptySpace.join(" ")
45
46  return finalTitle.trim()
47  
48}
49