1.5 KiB
		
	
	
	
	
	
	
	
			
		
		
	
	
			1.5 KiB
		
	
	
	
	
	
	
	
id, title, challengeType, videoUrl, localeTitle
| id | title | challengeType | videoUrl | localeTitle | 
|---|---|---|---|---|
| 587d7dbb367417b2b2512bac | Remove Whitespace from Start and End | 1 | 从开始和结束中删除空格 | 
Description
Instructions
.trim()方法可以在这里工作,但您需要使用正则表达式完成此挑战。 Tests
tests:
  - text: '<code>result</code>应该等于<code>"Hello, World!"</code>'
    testString: 'assert(result == "Hello, World!", "<code>result</code> should equal to <code>"Hello, World!"</code>");'
  - text: 您不应该使用<code>.trim()</code>方法。
    testString: 'assert(!code.match(/\.trim\(.*?\)/), "You should not use the <code>.trim()</code> method.");'
  - text: <code>result</code>变量不应设置为等于字符串。
    testString: 'assert(!code.match(/result\s*=\s*".*?"/), "The <code>result</code> variable should not be set equal to a string.");'
Challenge Seed
let hello = "   Hello, World!  ";
let wsRegex = /change/; // Change this line
let result = hello; // Change this line
Solution
// solution required