Using 'JSMin' to remove commented-out code from JavaScript

 I use Douglas Crockford's 'JSMin' minifier a lot.


I modified it to keep newlines so I can look through the results. You can find it at:


      'https://github.com/Bert-Beckwith/myjsmin'


'jsmin.c' is a small C program that removes JavaScript comments and excess whitespace.


I often comment out old code rather than remove the code, so I use 'JSMin' to look at what is left. Afterwards I say ':g/^$/d' in 'vim' to remove blank lines. I really should just remove the old code and learn to use my source control system better.


I also use 'JSMin' to minify my game, partly so that the input to 'UglifyJS' is smaller. I use an online version of 'UglifyJS' as my Linux system at home is a bit too old to run it. 'JSMin' is small and fast - I can run it in the background whilst playing my game.



Comments

Post a Comment

Popular posts from this blog

Steve Jobs quotes

 There are some good quotes from Steve Jobs at 'wikiquote.org'. Here are some:     - "I would trade all of my technology for an afternoon with Socrates",     - "Real artists ship",     - "Do you want to spend the rest of your life selling sugared water or do you want a chance to change the world?",     - "It's more fun to be a pirate than to join the Navy",     - "The only problem with Microsoft is they just have no taste",     - "We hired truly great people and gave them the room to do great work",     - "The management philosophy here really is to give people enough rope to hang themselves",     - "You've got to start with the customer experience and work backwards to the technology",     - "Nobody has tried to swallow us since I've been here. I think they are afraid how we would taste.",     - "It looks like it's from another planet. A good planet. A planet with bet...
Read more

Smooth scrolling

Image
 I have been adding 'smooth scrolling' to my pages which have internal links. I add this to my CSS:     :root { scroll-behavior:smooth; }  The browser now shows moving through the page to get to the link. This even works on Firefox and on the old Chrome for Windows7. Sometimes the page scrolls very quickly when I come 'back' to a page where I had gone to a link. I turn 'smooth scrolling' off when the user has asked for 'reduced motion'. I learnt about this from reading the book: 'Responsive Web Design with HTML and CSS' by Ben Frain. I found the book in a branch of my local library. I find different books in the different branches.
Read more

Coding in small steps can be boring

Image
 Breaking coding down into small steps can make coding boring. People sometimes say you should break down programming into small steps so as to 'keep it simple'. I have got into the habit of coding in very small steps because I am often tired in the evenings when I am coding. I spent several weeks adding an option to the settings page of my game.  Previously I might have done the whole thing in one evening. However, I work on around 7 or 8 improvements to my game at any one time. I use a very old browser at home where I have no connection to the Internet, so I need to visit my local library to test on modern browsers.  Also my game takes several minutes to load on my 25-year old Pentium computer.
Read more