Purpose:
Searches a string for the appearance of a search string and replaces it with the string contained in the third parameter (replacement string). If no third parameter is used, the string located using the search string will be deleted.
Parameter:
String String to check
String Search string
String (optional) Replacement string
Return value:
String
Example:
ReplaceChr$("Hello World","o","_") Result: Hell_ W_rld"