Question

为了在JS中构建一个小型的chabot，我需要检查列表中的一个单词是否在字符串中，如下所示：

var helloWords = [＆＃34; hello＆＃34;，＆＃34; salut＆＃34;，＆＃34; hi＆＃34;，＆＃34; yo＆＃34;，＆＃34;嘿＆＃34 ];

var HowWords = [＆＃34;你好吗＆＃34;，＆＃34;什么＆＃39;＆＃34;，＆＃34;它是怎么回事＆＃34;，＆＃34;怎么做你做＆＃34;];

如果＆＃34;其中一个来自helloWords的单词在字符串＆＃34;
中
- ＆GT;回复一些事情

如果＆＃34; howWords中的一个词出现在字符串＆＃34;
中
- ＆GT;回复别的东西

我目前正在使用以下方法，但它根本不实用，而且我在长期的if / else计划中迷路了...

var hello = /\bhello\b|\bhi\b|\byo\b|\bsalut\b/gi.test(commands）;

if（hello == true} ....

你知道是否有更清洁，更有效的方法来构建这样的东西？也许在另一个语言中？

非常感谢！

Answer 1

您可以使用Array.prototype.includes()。

匹配整个字符串：

var helloWords = ["hello", "salut", "hi", "yo", "hey"];

var HowWords = ["how are you", "what's up", "how is it going", "how do you do"];

if (helloWords.includes(yourString.toLowerCase())) {
    // Reply something
}
if (HowWords.includes(yourString.toLowerCase())) {

    // Reply something else
}

要匹配部分字符串，您需要使用Array.prototype.some()执行类似的操作：

var helloWords = ["hello", "salut", "hi", "yo", "hey"];

var HowWords = ["how are you", "what's up", "how is it going", "how do you do"];

if (helloWords.some( i => yourString.toLowerCase().includes(i) )) {
    // Reply something
}
if (HowWords.some( i => yourString.toLowerCase().includes(i) )) {
    // Reply something else
}

Answer 2

我建议您indexOf获得更广泛的浏览器兼容性：

var helloWords = ["hello", "salut", "hi", "yo", "hey"];
var HowWords = ["how are you", "what's up", "how is it going", "how do you do"];

if (helloWords.indexOf(yourString.toLowerCase()) !== -1) {
// Logic
}
if (HowWords.indexOf(yourString.toLowerCase()) !== -1) {
// Logic
}

您好，感谢您的帮助。但是我遇到了一个问题，它只在只有单词（例如）“hello”时才有效，但是如果字符串是“你好”，它就不起作用了。

另一种方法是使用函数some：

var helloWords = ["hello", "salut", "hi", "yo", "hey"];
var HowWords = ["how are you", "what's up", "how is it going", "how do you do"];

var input = 'hello you',
    samples = input.split(/\s+/g); // split the entered value by spaces.
if (helloWords.some((h) => samples.includes(h.trim().toLowerCase()))) {
  console.log('Logic for helloWords');
}

// This condition returns false because neither 'hello' nor 'you' is within
// the array HowWords.
if (HowWords.some((h) => samples.includes(h.trim().toLowerCase()))) {
  console.log('Logic for HowWords');
}

检查单词列表是否在字符串中（Small Chatbot）

2 个答案: