Sha256: c4a26fc8fd2e72c49a0b85f7887e8236b0c24c3167b040c80cb997e45496581b
Contents?: true
Size: 1.7 KB
Versions: 283
Compression:
Stored size: 1.7 KB
Contents
const animals = ["fly", "spider", "bird", "cat", "dog", "goat", "cow", "horse"]
export default class FoodChain {
public static verses(start = 1, end = 8): string {
if (end < start) {throw new Error("end should be smaller than the start")}
let verses = ""
for ( ; start <= end; start += 1) {
verses += FoodChain.verse(start)
if (start !== end) {
verses += "\n"
}
}
return verses
}
public static verse(num: number): string {
let result = ""
let index = num - 1
result += `I know an old lady who swallowed a ${animals[index]}.\n`
switch (num) {
case 2: result += "It wriggled and jiggled and tickled inside her.\n"
break
case 3: result += "How absurd to swallow a bird!\n"
break
case 4: result += "Imagine that, to swallow a cat!\n"
break
case 5: result += "What a hog, to swallow a dog!\n"
break
case 6: result += "Just opened her throat and swallowed a goat!\n"
break
case 7: result += "I don't know how she swallowed a cow!\n"
break
case 8: result += "She's dead, of course!\n"
return result
default: break
}
while ( index >= 1 ) {
result += `She swallowed the ${animals[index]} to catch the ${animals[index - 1]}`
if ( index === 2 ) {
result += " that wriggled and jiggled and tickled inside her"
}
result += ".\n"
index -= 1
}
result += "I don't know why she swallowed the fly. Perhaps she'll die."
return result + "\n"
}
}
Version data entries
283 entries across 283 versions & 1 rubygems