How to get a string array of all keys from a dictionary and change each string in the same way

Question

An easy and simple (but not very good) way is to simply get an array of keys and repeat it updating each row.

string[] mapKeys = myDictionary.Keys.ToArray();

    for (int i = 0; i < mapKeys.Length; i++)
        mapKeys [i] = mapKeys [i].Replace("substringToRemove", "");

But is there a way to do this in 1 line of code (e.g. using LINQ)?

Answer 1

mapKeys = mapKeys.Select(o=>o.Replace("substringToRemove", string.Empty)).ToArray();

or from your myDictionary:

string[] mapKeys = myDictionary.Keys.Select(o=>o.Replace("substringToRemove", string.Empty)).ToArray();

Answer 2

You can use below LINQ:

mapKeys = mapKeys.Select( s => s.Replace("substringToRemove",string.Empty)).ToArray();