--- id: 587d7dbb367417b2b2512bac title: Remove Whitespace from Start and End challengeType: 1 forumTopicId: 301362 dashedName: remove-whitespace-from-start-and-end --- # --description-- Sometimes whitespace characters around strings are not wanted but are there. Typical processing of strings is to remove the whitespace at the start and end of it. # --instructions-- Write a regex and use the appropriate string methods to remove whitespace at the beginning and end of strings. **Note:** The `String.prototype.trim()` method would work here, but you'll need to complete this challenge using regular expressions. # --hints-- `result` should be equal to the string `Hello, World!` ```js assert(result === 'Hello, World!'); ``` Your solution should not use the `String.prototype.trim()` method. ```js assert(!code.match(/\.?[\s\S]*?trim/)); ``` The `result` variable should not directly be set to a string ```js assert(!code.match(/result\s*=\s*["'`].*?["'`]/)); ``` # --seed-- ## --seed-contents-- ```js let hello = " Hello, World! "; let wsRegex = /change/; // Change this line let result = hello; // Change this line ``` # --solutions-- ```js let hello = " Hello, World! "; let wsRegex = /^(\s+)(.+[^\s])(\s+)$/; let result = hello.replace(wsRegex, '$2'); ```