Ubuntu/Debian : sudo apt install tlp
to start it : sudo tlp start
to show stat : sudo tlp stat
Long time no see wordpress ! been busy lately.
Ruby spaceship operator <=>
The spaceship operator is general comparison operator. The <=> operator compares 2 values and returning -1, 0, or 1 depending on whether the first value is less than, equal, or greater than the second.
Example in irb.
This operator is used on ruby range operation , objects must implement <=> and succ method to perform range operation. Lets test the a numeric value for these methods.
Keep learning ruby on 2021.
Pragmatic Ruby Programming Book
One book that help ruby spread outside Japan. The book use Ruby 1.6 but still relevant.
Happy New Year 2021
