JavaScript 数组 : How to check if two consecutive words are the same?

Question

我想让我的程序检查数组中任意两个连续的单词是否相同。我相信我的“if”语句是正确的，但是 console.log 显示所有连续的单词都匹配。我在这里想念什么？

感谢任何帮助!我是新手:)

var wordArray = ["blue", "green", "yellow", "red", "red", "blue", "blue", "yellow"]

for (i=0; i<wordArray.length - 1; i++) {
    if (i === i+1); {
        console.log("We have a match!");
    } //Why is this loop saying that all items in the array are equal?
}

Answer 1

试试这个。除了错误的 if 语句之外，您正在检查索引而不是数组的元素。

for (i = 0; i < wordArray.length - 1; i++) {
    if (wordArray[i] === wordArray[i + 1]) {
        console.log("We have a match!");
    }
}

如果数组只有一个元素长，只是一个更好的长度处理的提示:

for (i = 1; i < wordArray.length; i++) {
    if (wordArray[i - 1] === wordArray[i]) {
        console.log("We have a match!");
    }
}