Version checking issue with "00 Install npm" exercise

[mark-walle]

Encountered a mistake with the first exercise where it believes an older version of npm is later than my current version:

> how-to-npm verify
verifying that npm is installed...
You have version 4.1.2 installed.  Great!
Now let's see what the latest version is... wait for it...
The latest npm is: 4.4.1
You have version 4.1.2, but the latest is 4.4.1
Run `npm install npm -g` to upgrade it
(You can also just skip this if you want)

[mark-walle]

I just changed to 4.4.1 in order to complete the workshop, but maybe how-to-npm should allow pre-releases to pass, or give explicit directions to not use pre-release versions.

[watilde]

thanks for reporting this! I think it's just a logic bug in a code:
https://github.com/workshopper/how-to-npm/blob/master/problems/00-install-npm/index.js#L53

I'm gonna fix it.

[myintmyatkyu]

Hi I got this error when I run how-to-npm verify at "00 install npm" exercise
I have passed all other exercises except this one. Thanks

how-to-npm verify
verifying that npm is installed...
You have version 6.0.1 installed. Great!
Now let's see what the latest version is... wait for it...
The latest npm is:
/home/ec2-user/.nvm/versions/node/v6.14.1/lib/node_modules/how-to-npm/node_modules/semver/semver.js:295
throw new TypeError('Invalid Version: ' + version);
^

TypeError: Invalid Version:
at new SemVer (/home/ec2-user/.nvm/versions/node/v6.14.1/lib/node_modules/how-to-npm/node_modules/semver/semver.js:295:11)
at compare (/home/ec2-user/.nvm/versions/node/v6.14.1/lib/node_modules/how-to-npm/node_modules/semver/semver.js:571:10)
at Function.gt (/home/ec2-user/.nvm/versions/node/v6.14.1/lib/node_modules/how-to-npm/node_modules/semver/semver.js:600:10)
at /home/ec2-user/.nvm/versions/node/v6.14.1/lib/node_modules/how-to-npm/problems/00-install-npm/index.js:53:18
at ChildProcess.exithandler (child_process.js:190:7)
at emitTwo (events.js:106:13)
at ChildProcess.emit (events.js:191:7)
at maybeClose (internal/child_process.js:920:16)
at Process.ChildProcess._handle.onexit (internal/child_process.js:230:5)