仅在字符串末尾匹配整个句子

Posted 2023-01-15

比方说，我们要检查speech是否包含特定句子（reference）但在它的最后和结尾：

这里是reference：

let reference = "have you ever look at someone";

基于此reference，我们想比较speech并返回匹配项或不匹配项：

let speech = "blaaaah have you ever look at someone"; // Match because 'have you ever look at someone' is at the end of speech
let speech = "have you ever look at someone blaaaah"; // No match because something else came after 'have you ever look at someone'

问题是我无法区分上述语音示例，并且代码始终返回Match：

//let speech = "blaaaah have you ever look at someone"; // matched
let speech = "have you ever look at someone blaaaah"; // No match 

let reference = "have you ever look at someone";

if(new RegExp("\\b"+reference+"\\b").test(speech))
  console.log("Finally Matched!")
 else 
  console.log("No Match At Last!")

答案

这是您要寻找的吗？

//let speech = "blaaaah have you ever look at someone"; // matched
let speech = "have you ever look at someone blaaaah"; // No match 

let reference = "have you ever look at someone";

if(new RegExp("\\b"+reference+"\\b$").test(speech))
  console.log("Finally Matched!")
 else 
  console.log("No Match At Last!")

另一答案

您可以使用endsWith进行如下验证，

var str = "Hello world, welcome to the universe.";
var n = str.endsWith("universe.");

根据您的情况

  //let speech = "blaaaah have you ever look at someone"; // matched
let speech = "have you ever look at someone blaaaah"; // No match 

let reference = "have you ever look at someone";

if(speech.endsWith(reference))
  console.log("Finally Matched!")
 else 
  console.log("No Match At Last!")

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