添加一个复合 AND 条件，允许循环仅在以下情况下继续迭代

Question

我在做运动，要求如下：

使用 For 循环遍历中奖号码数组中的每个位置，并将客户号码与数组包含的每个号码进行比较。

要完成此操作，您需要进行以下设置。

循环的计数器变量（例如 i）。
用于标记是否找到匹配项的布尔变量（例如匹配项）。
只允许循环继续迭代的复合AND条件如果未找到匹配项，并且尚未到达数组末尾。
嵌套在检查客户的 For 循环中的 if 语句数组中的每个中奖号码，每次循环如果找到匹配项，则迭代并将布尔值匹配设置为真。

到目前为止，我所做的工作有效，但我不明白要求 3 会去哪里或需要它（因为 for 循环已经检查是否未到达数组末尾？所以肯定只需要单个 if 语句而不是复合语句？），有人可以解释一下吗？

我目前拥有的：

var customerNumbers = 12;
var winningNumbers = [];
var match = false;

// Adds the winning numbers to winningNumbers
winningNumbers.push(12, 17, 24, 37, 38, 43);

// Messages that will be shown
var winningMessage = "This Week's Winning Numbers are:\n\n" + winningNumbers + "\n\n";
var customerMessage = "The Customer's Number is:\n\n" + customerNumbers + "\n\n";
var resultMessage = "Sorry, you are not a winner this week.";

// Searches the array to check if the customer number is a winner
for (var i = 0; i < winningNumbers.length; i++) {
 if (customerNumbers == winningNumbers[i]) {
  resultMessage = "We have a match and a winner!"
  match = true;
 }
}

// Result
alert(winningMessage + customerMessage + resultMessage);

Answer 1

像这样在 for 条件中添加 and 语句。
for (var i = 0; i < winningNumbers.length && !match; i++) {

无需更改 if 语句

var customerNumbers = 12;
var winningNumbers = [];
var match = false;

// Adds the winning numbers to winningNumbers
winningNumbers.push(12, 17, 24, 37, 38, 43);

// Messages that will be shown
var winningMessage = "This Week's Winning Numbers are:\n\n" + winningNumbers + "\n\n";
var customerMessage = "The Customer's Number is:\n\n" + customerNumbers + "\n\n";
var resultMessage = "Sorry, you are not a winner this week.";

// Searches the array to check if the customer number is a winner
for (var i = 0; i < winningNumbers.length && !match; i++) {
 if (customerNumbers == winningNumbers[i]) {
  resultMessage = "We have a match and a winner!"
  match = true;
 }
}

// Result
alert(winningMessage + customerMessage + resultMessage);

添加一个复合 AND 条件，允许循环仅在以下情况下继续迭代

Add a compound AND condition that allows the loop to continue to iterate only if

javascript

conditional

loops

for-loop

if-statement