check if a string exists downloads
Append Text If It Does Or Does Not Exist Software
7.0 download... solution to users who want to append a string of characters in any of a set of files that do not contain a user-defined string. The user simply adds text files or chooses ...
Javascript Hashset
1.0 download... up (searching) to see if a value already exists in a Hashset. It uses a dictionary like ... avoid duplicate entries in an array - or check the existence of a value without a performance ...