Feeling trapped in a never-ending cycle?

Just dipping my toes into the world of JavaScript, so please be kind with any questions that may seem "ignorant."

I've hit a snag in my current code - it feels like I'm stuck in a loop (not exactly infinite) that finally breaks after roughly 5 rounds of prompts.

var authors = [];
for(var authorIndex = 0; authorIndex < books.length; authorIndex++)
{
    authors[0]=parseFloat(prompt("Who wrote War and Peace?"));
    authors[1]=parseFloat(prompt("Who wrote Huckleberry Finn?"));
    authors[2]=parseFloat(prompt("Who wrote The Return of the Native?"));
    authors[3]=parseFloat(prompt("Who wrote A Christmas Carol?"));
    authors[4]=parseFloat(prompt("Who wrote Exodus?"));
}

Not sure if I'm setting up the array incorrectly or if there's an issue with the for loop. Any guidance on how to properly populate the array would be appreciated.

Please remember that I'm still a beginner in JavaScript, so simple explanations would be incredibly helpful as I work on grasping the fundamentals. (:

javascriptarraysinfinite-loop

Answer №1

Here is the solution you are seeking:

var bookTitles = [
    "Gone with the Wind?",
    "To Kill a Mockingbird?",
    "Pride and Prejudice?",
    "The Great Gatsby?",
    "Moby Dick?"
];

for(var writerIndex = 0; writerIndex < books.length; writerIndex++)
{
   writers[writerIndex]=parseFloat(prompt("Who wrote " + bookTitles[writerIndex] + "?"));
}

This loop will iterate only 5 times and offers a more efficient approach to achieve your goal. Additionally, I recommend changing the name of writerIndex to something that reflects its purpose more accurately.

Answer №2

Each iteration of a for loop executes a block of code a set number of times, determined by the specified condition such as books.length. The loop counter, represented here as authorName, increments with each iteration and can take on values from 0 to 4 in this example.

for(var authorName = 0; authorName < books.length; authorName++)
{
  authors[authorName] = prompt("Who is the author of " + books[authorName] + "?");
}

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