DiffNano is return start & end time for program.

FileExist return true if file exist.

Creates a new concurrent map.

NewCurl is read string to Curl.

ParseTheFileC is read multi curl file to Curl struct.

A "thread" safe string to anything map.

Curl store curl file use for go map struct.

Used by the Iter & IterBuffered functions to wrap two variables together over a channel,.

A "thread" safe map of type string:Anything.

Callback to return new element to be inserted into the map It is called while lock is held, therefore it MUST NOT try to access other keys in same map, as it can lead to deadlock since Go sync.RWLock is not reentrant.