我正在使用javascript和html开发一个简单的聊天机器人。下面的代码工作并使用。split来检查整个单词，然而，这意味着输入的任何单词都超过一个单词，如“How are you？”不再起作用了。如何改变这一点，以便它允许多个单词，但仍然检查整个单词，如“hi”，这样它们就不会在较大的单词中被选中，如“high”等

任何帮助都将不胜感激！谢谢！

var know = {
<!--General Phrases-->  
"Hi": "Hello! &#128075",
"Hey": "Hello! &#128075",
"Hello":"Hello &#128075 How can I help?",    
"how are you":"Not bad, thanks!",
"Bye":"Have a nice day!",
"Goodbye":"See you later!", 

<!--Directory-->
"Help": `You can find help by searching below or by clicking <a href='https://www.page.com/news' target="_blank">here</a>`,
"contact":  `You can contact us by clicking <a href='https://www.page.com/contact' target="_blank">here</a>`,
"About": `You can find our About Us page by clicking <a href='https://www.page.com/about' target="_blank">here</a>` 
};

function goo() {
 var userBox = document.getElementById('userBox');
 var userInput = userBox.value;
 var chatLog = document.getElementById('chatLog');
 var chatLogContent = "";

 if (!userInput) {
     chatLogContent = ''
 }

 var hasKeyword = false;

 for (var key in know) {
      if (userInput.toLowerCase()
      .replace(/[.,\/#!$%\^&\*;:{}=\-_`~ ()]/g,"")
      .split(/\s+/)
      .includes(key.toLowerCase())) {
          hasKeyword = true;
          break;
      } else {
          hasKeyword = false;
      }
 }

if (hasKeyword) {
    chatLogContent += know[key] + "<br>"; //or use know.key
} else {
    chatLogContent += "No results found. Please enter another search term below.<br>";
}

var server = document.createElement('div');
server.setAttribute('class', 'server');
server.innerHTML = chatLogContent;
document.getElementById('chatLog').innerHTML = '';
chatLog.appendChild(server);
}

顺晟科技：

您可以使用regex:

var know = {
<!--General Phrases-->  
"Hi": "Hello! &#128075",
"Hey": "Hello! &#128075",
"Hello":"Hello &#128075 How can I help?",    
"how are you":"Not bad, thanks!",
"Bye":"Have a nice day!",
"Goodbye":"See you later!", 

<!--Directory-->
"Help": `You can find help by searching below or by clicking <a href='https://www.page.com/news' target="_blank">here</a>`,
"contact":  `You can contact us by clicking <a href='https://www.page.com/contact' target="_blank">here</a>`,
"About": `You can find our About Us page by clicking <a href='https://www.page.com/about' target="_blank">here</a>` 
};

function goo() {
 var userBox = document.getElementById('userBox');
 var userInput = userBox.value;
 var chatLog = document.getElementById('chatLog');
 var chatLogContent = "";

 if (!userInput) {
     chatLogContent = ''
 }

 var hasKeyword = false;

 for (var key in know) {
      if (userInput.toLowerCase()
      .replace(/[.,\/#!$%\^&\*;:{}=\-_`~ ()]/g,"")
      .split(/\s+/)
      .includes(key.toLowerCase())) {
          hasKeyword = true;
          break;
      } else {
          hasKeyword = false;
      }
 }

if (hasKeyword) {
    chatLogContent += know[key] + "<br>"; //or use know.key
} else {
    chatLogContent += "No results found. Please enter another search term below.<br>";
}

var server = document.createElement('div');
server.setAttribute('class', 'server');
server.innerHTML = chatLogContent;
document.getElementById('chatLog').innerHTML = '';
chatLog.appendChild(server);
}

Rexgex解释:

var know = {
<!--General Phrases-->  
"Hi": "Hello! &#128075",
"Hey": "Hello! &#128075",
"Hello":"Hello &#128075 How can I help?",    
"how are you":"Not bad, thanks!",
"Bye":"Have a nice day!",
"Goodbye":"See you later!", 

<!--Directory-->
"Help": `You can find help by searching below or by clicking <a href='https://www.page.com/news' target="_blank">here</a>`,
"contact":  `You can contact us by clicking <a href='https://www.page.com/contact' target="_blank">here</a>`,
"About": `You can find our About Us page by clicking <a href='https://www.page.com/about' target="_blank">here</a>` 
};

function goo() {
 var userBox = document.getElementById('userBox');
 var userInput = userBox.value;
 var chatLog = document.getElementById('chatLog');
 var chatLogContent = "";

 if (!userInput) {
     chatLogContent = ''
 }

 var hasKeyword = false;

 for (var key in know) {
      if (userInput.toLowerCase()
      .replace(/[.,\/#!$%\^&\*;:{}=\-_`~ ()]/g,"")
      .split(/\s+/)
      .includes(key.toLowerCase())) {
          hasKeyword = true;
          break;
      } else {
          hasKeyword = false;
      }
 }

if (hasKeyword) {
    chatLogContent += know[key] + "<br>"; //or use know.key
} else {
    chatLogContent += "No results found. Please enter another search term below.<br>";
}

var server = document.createElement('div');
server.setAttribute('class', 'server');
server.innerHTML = chatLogContent;
document.getElementById('chatLog').innerHTML = '';
chatLog.appendChild(server);
}

要转义键，请查看JavaScript中有regexp.escape函数吗？