Replacing illegal character in fileName

Question

In Java, I\'ve a File-Name-String. There I want to replace all illegal Characters with \'_\', but not a-z, 0-9, -,. and <

Answer 1

for NodeJS (v10), the function replaceAll() is undefined!

The solution is:

let newName = myString.replace(/[^a-zA-Z0-9.-]/gi, "_");