如何通过循环构建字符串？JavaScript代码优化问询

Hey there! Let's get this sorted so you can collect and display all the words entered during your game. Here's a breakdown of the issues and the fixed solution:

What's Wrong with the Original Code #

Your current code has a couple of key issues:

• The game2 variable is declared inside the loop, so it gets overwritten every time the loop runs—only the last input gets saved.
• There's a syntax error: if (prompt === 'Yes'); has an extra semicolon that breaks the if logic, plus you're checking prompt instead of the actual variable game where you stored the first user response.
• The loop logic doesn't properly track whether the user wants to keep playing on the first run.

Fixed Code #

Here's the revised version that collects all words and outputs them as a space-separated string:

let game = prompt('Do you want to play?');
let words = []; // Array to store all entered words

if (game === 'Yes') {
  do {
    let userWord = prompt('Enter your word.');
    words.push(userWord); // Add each new word to the array
    game = prompt('Do you want to play again?');
  } while (game !== 'No');
}

// Convert the array to a space-separated string and log it
console.log("Your words are: " + words.join(' '));

Key Changes Explained #

• Array for storage: We use an array words to keep track of every word the user enters—instead of overwriting a single variable, we push() each new word into the array.
• Fixed if logic: Removed the extra semicolon from the if statement and check the correct variable game to start the game only if the user says "Yes".
• Clean loop flow: Updated the loop to reassign game with the "play again" prompt, so the loop condition correctly checks if the user wants to stop.
• Join array to string: The join(' ') method takes all elements in the array and combines them into one string, separated by spaces—perfect for your desired output format.

内容的提问来源于stack exchange，提问作者Mohammed Fahad