如何比較陣列中的元素并宣告它們是否在正確的位置？

const listOfWords = ['angel', 'break', 'clear', 'knock', 'maybe'];

var userWord = readLine("Enter a 5 letter word: \n");

var randomItem = listOfWords[Math.floor(Math.random()*listOfWords.length)];

var newWord = userWord;

var randomItem;

letterChecker();

僅當字母在陣列中但不在該位置時才應顯示“is yellow”陳述句，并且僅當字符根本不在陣列中但它們都不起作用時才應放置“is gray”陳述句應該。當您輸入 5 個字母的單詞時，應該比較相應的字符，例如 [0]、[1]、[2]、[3]、[4]，但事實并非如此。對于背景關系，我在下面有相同的 if 陳述句，但每個 [] 都是下一個數字。它們都在同一個函式中，我只是沒有添加它，所以它不占用空間。

function letterChecker() {
println(randomItem);
  
  if(newWord[0] === randomItem[0]) {
            console.log(newWord[0]   " is green");
    } else {
        if(newWord.includes(randomItem[0])){
            console.log(newWord[0]   " is yellow");
        }
    }
    if(!newWord.includes(randomItem[0])){
            console.log(newWord[0]   " is grey");
    }
    
    
    if(newWord[1] === randomItem[1]) {
            console.log(newWord[1]   " is green");
    } else {
        if(newWord.includes(randomItem[1])){
            console.log(newWord[1]   " is yellow");
        }
    }
    if(!newWord.includes(randomItem[1])){
            console.log(newWord[1]   " is grey");
    }
    
    
    if(newWord[2] === randomItem[2]) {
            console.log(newWord[2]   " is green");
    } else {
        if(newWord.includes(randomItem[2])){
            console.log(newWord[2]   " is yellow");
        }
    }
    if(!newWord.includes(randomItem[2])){
            console.log(newWord[2]   " is grey");
    }
    
    
    if(newWord[3] === randomItem[3]) {
            console.log(newWord[3]   " is green");
    } else {
        if(newWord.includes(randomItem[3])){
            console.log(newWord[3]   " is yellow");
        }
    }
    if(!newWord.includes(randomItem[3])){
            console.log(newWord[3]   " is grey");
    }
       
        
    if(newWord[4] === randomItem[4]) {
            console.log(newWord[4]   " is green");
    } else {
        if(newWord.includes(randomItem[4])){
            console.log(newWord[4]   " is yellow");
        }
    }
    if(!newWord.includes(randomItem[4])){
            console.log(newWord[4]   " is grey");
    }

}

第一個詞是我輸入到 readline() 中的詞，第二個詞是隨機詞。這是輸出：

Enter a 5 letter word: 
angel
break
a is grey
Enter another word: 
break
r is yellow
Enter another word: 
break
e is green
Enter another word: 
break
a is green
Enter another word: 
break
k is green

擴展輸出：

Enter a 5 letter word: 
    angel
    break
    a is yellow
    Enter another word: 
    break
    r is green
    Enter another word: 
    break
    e is green
    Enter another word: 
    break
    a is green
    Enter another word: 
    break
    k is green

代碼輸出：

ReferenceError: i is not defined
    at letterChecker (17:10)
    at 12:1
Enter a 5 letter word: 
angel
randomItemknock

uj5u.com熱心網友回復：

我認為您只是includes倒退了；您正在檢查用戶的單詞是否包含來自隨機單詞的特定字母，而您應該檢查隨機單詞是否包含來自用戶單詞的字母。

const listOfWords = ['angel', 'break', 'clear', 'knock', 'maybe'];

//var userWord = readLine("Enter a 5 letter word: \n");
var userWord = "angel";

var randomItem = listOfWords[Math.floor(Math.random()*listOfWords.length)];

var newWord = userWord;

var randomItem;

letterChecker();

function letterChecker() {
console.log("randomItem",randomItem);
  
  for (i = 0; i < 5; i  ) {
    console.log("newWord[i]",newWord[i]);
    console.log("randomItem[i]",randomItem[i]);
    console.log("equal?",newWord[i] === randomItem[i]);
    console.log(randomItem   " includes '"   newWord[i]   "'?",randomItem.includes(newWord[i]));
    if(newWord[i] === randomItem[i]) {
              console.log(newWord[i]   " is green");
      }
      else {
          if(randomItem.includes(newWord[i])){//words reversed
              console.log(newWord[i]   " is yellow");
          }
      }
      if(!randomItem.includes(newWord[i])){
           console.log(newWord[i]   " is grey");
      }
      console.log("---")
   }
}
        

標籤：javascript 数组

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