How to truncate a string in JavaScript. The challenge is, the function must return the truncated version of the given string up to the given limit followed by "..." if the result is shorter than the original. Return the same string if nothing was truncated. Day 6 of 365 Days of Coding!

Day 6 of 365 Days of Coding! Truncate a string. The function must return the truncated version of the given string up to the given limit followed by "..." if the result is shorter than the original. Return the same string if nothing was truncated.