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#fizzbuzz
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| // "Write a program that prints the numbers from 1 to 100. | |
| // But for multiples of three print “Fizz” instead of the number | |
| // and for the multiples of five print “Buzz”. | |
| // For numbers which are multiples of both three and five print “FizzBuzz”." | |
| // 1 - simplest | |
| function one() { | |
| for (let i = 1; i <= 100; i++) { | |
| if (i % 3 === 0 && i % 5 === 0) { // this is the same as 'i % 15 === 0' | |
| console.log("FizzBuzz"); | |
| } else if (i % 3 === 0) { | |
| console.log("Fizz"); | |
| } else if (i % 5 === 0) { | |
| console.log("Buzz"); | |
| } else { | |
| console.log(i); | |
| } | |
| } | |
| } | |
| // 2 - make into an array | |
| function two() { | |
| let a = Array.from({ length: 100 }).map((el, i) => { | |
| let divBy3 = (i + 1) % 3 === 0; | |
| let divBy5 = (i + 1) % 5 === 0; | |
| if(divBy3 && divBy5) { | |
| return "FizzBuzz"; | |
| } else if (divBy3) { | |
| return "Fizz"; | |
| } else if (divBy5) { | |
| return "Buzz"; | |
| } else { | |
| return i + 1; | |
| } | |
| }); | |
| console.log(a); | |
| } | |
| // 3 - append to output | |
| function three() { | |
| for (let i = 1; i <= 100; i++) { | |
| let output = ""; | |
| if (i % 3 === 0) { // alternative 'if (!(i % 3))' | |
| output += "Fizz"; | |
| } | |
| if (i % 5 === 0) { | |
| output += "Buzz"; | |
| } | |
| // if output is empty, print i | |
| console.log(output || i); | |
| } | |
| } | |
| // 4 - 'append to output' variation w/ ternary operator | |
| function four() { | |
| for (let i = 1; i <= 100; i++) { | |
| console.log( ((i % 3 === 0 ? "Fizz" : "") + (i % 5 === 0 ? "Buzz" : "")) || i ); | |
| } | |
| } | |
| // 5 - objects | |
| function five() { | |
| for(let i = 1; i <= 100; i++) { | |
| console.log( | |
| ({ true: "Fizz", false: "" }[i % 3 === 0] + | |
| { true: "Buzz", false: "" }[i % 5 === 0]) | |
| || i | |
| ); | |
| } | |
| } | |
| // 6 - function composition (I don't understand) | |
| function six() { | |
| for (let i = 1; i <= 100; i++) { | |
| let test = (divBy, output, x) => i % divBy === 0 ? _ => output + x("") : x; | |
| let fizz = x => test(3, "Fizz", x); | |
| let buzz = x => test(5, "Buzz", x); | |
| console.log(fizz(buzz(x => x))(i.toString())); | |
| } | |
| } | |
| one(); | |
| two(); | |
| three(); | |
| four(); | |
| five(); | |
| six(); |
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