Support HSTRLEN command.

[argsno]

Support HSTRLEN command.

Returns the string length of the value associated with field in the hash stored at key. If the key or the field do not exist, 0 is returned.

Interested in being able to deepen my understanding by implementing some small features. thx.

refer: #76

[TalZaccai]

Nice work! Added a few comments :)
Thanks for your contribution!

[badrishc]

Make sure you use the error handling logic introduced in this recent PR: #103

[argsno]

Make sure you use the error handling logic introduced in this recent PR: #103

Yes, I have modify the code to use the same handling logic

[yrajas]

Please make sure to update documentation to indicate HSTRLEN is supported now.
Under website/docs/commands/api-compatibility.md

[argsno]

Please make sure to update documentation to indicate HSTRLEN is supported now. Under website/docs/commands/api-compatibility.md

thanks, The api-compatibility.md and data-structures.md file have been updated to reflect HSTRLEN support.

[TalZaccai]

I'm encountering an issue that seems to happen subsequently to when an error is returned. Please take a look...
Note how after "wrong number of arguments" we're getting "unknown command" for the same input

[argsno]

I'm encountering an issue that seems to happen subsequently to when an error is returned. Please take a look... Note how after "wrong number of arguments" we're getting "unknown command" for the same input

After parsing the incorrect command, a return is missed. I apologize for the bug I introduced.

[TalZaccai]

I'm encountering an issue that seems to happen subsequently to when an error is returned. Please take a look... Note how after "wrong number of arguments" we're getting "unknown command" for the same input

After parsing the incorrect command, a return is missed. I apologize for the bug I introduced.

No worries at all!

[TalZaccai]

Looks good! Thanks again for your work!