This article is based on Free Code Camp Basic Algorithm Scripting “Reverse a String”
Reverse the provided string.
You may need to turn the string into an array before you can reverse it.
Your result must be a string.
Provided test cases
reverString("hello") should become "olleh"
reverseString("Howdy") should become "ydwoH"
reverseString("Greetings from Earth") should return "htraE morf sgniteerG"
Reverse a String With Built-In Functions — with split(), reverse() and join()
For this solution, you will use three methods: the String.prototype.split() method, the Array.prototype.reverse() method and the Array.prototype.join() method.
- The split() method splits a String object into an array of string by separating the string into sub strings.
- The reverse() method reverses an array in place. The first array element becomes the last and the last becomes the first.
- The join() method joins all elements of an array into a string.
Here’s my solution, with embedded comments:
Chaining the three methods together:
I hope you found this helpful. This is part of my “How to Solve FCC Algorithms” series of articles on the Free Code Camp Algorithm Challenges, where I propose several solutions and explain step-by-step what happens under the hood.
This article is based on Free Code Camp Basic Algorithm Scripting “Reverse a String”medium.freecodecamp.com
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