Get the File Extension

JavaScriptHardstringshigher_order_functionsarrays

Instructions

Write a function that maps files to their extension names.

Examples

getExtension(["code.html", "code.css"])
➞ ["html", "css"]

getExtension(["project1.jpg", "project1.pdf", "project1.mp3"])
➞ ["jpg", "pdf", "mp3"]

getExtension(["ruby.rb", "cplusplus.cpp", "python.py", "javascript.js"])
➞ ["rb", "cpp", "py", "js"]

Notes

N/A

javascript

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Walks through the solution with reasoning and edge cases.

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