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Introduction to TypeScript
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Conteúdo do Curso

Introduction to TypeScript

Introduction to TypeScript

1. TypeScript Fundamentals
What is TypeScript?SyntaxSimple variable declarationMathematics in TypeScriptTyped variable declarationCommentsCode Syntax Correction Challenge
2. Conditional Statements
Comparison Operatorsif statementIf-else statementDay of the Week Condition Execution ChallengeComplex ConditionsSwitchChallenge: Commission Calculator
3. Arrays
Declaration and Advantages of ArraysWorking with Array ElementsArray TypingChallenge: Modifying ArraysSpread Syntax
4. Loops
While-Loop`break` keywordDo-While LoopChallenge (snail game)`for` loop`for` loop with arrays Challenge (FizzBuzz)`forEach` method
5. Functions
Functions introductionParameters and Return StatementChallenge (lottery)Optional ParametersDefault ValuesChallenge (price calculator) Summary

bookChallenge (FizzBuzz)

Task

The classic problem is called FizzBuzz. The task is very simple: You are given an array of random numbers, and the code for generating the numbers is provided above; please do not modify that code. Your task is to replace the array elements according to the following conditions:

  • If a number is divisible by 3, replace it with 'Fizz';
  • If a number is divisible by 5, replace it with 'Buzz';
  • If a number is divisible by both 3 and 5, replace it with 'FizzBuzz'.

As a result, you should return an array of numbers and strings. You can check the hints and solutions if you have any difficulties with solving this problem. This way, you will better absorb the information and improve your skills. May the force be with you!


              
1234567891011121314151617181920212223

            
let randomNumbers: (number | string)[] = [];

// do not change the code below
for (let i = 0; i < 15; i++) {
  let randomNumber: number = Math.floor(Math.random() * 100); // Generating a random number from 0 to 99
  randomNumbers.push(randomNumber);
}
//do not change the code above

for (let i = 0; i < ___; i++) {
    // Assert that randomNumbers[i] is a number before using the modulus operator
    let num = randomNumbers[i] as number;
  
    if (___) {
        randomNumbers[i] = '___'
    } else if (___) {
        ___ = 'Fizz'
    } else if (___) {
        ___
    }
}

console.log(randomNumbers);
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Seção 4. Capítulo 7
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