Posted in code
4
1:51 am, July 17, 2019

how to add a darkmode toggle to switch css and remember it dark mode

So it seems the trend lately is to add darkmode to everything...

Dark Mode

Light Mode

Its actually not that hard to switch style sheets and add a dark version of the same style, it seems to be a bit laggy in switching though as its quite a large script, but it does work.

This was actually harder than i thought, you can just switch out the whole style sheet, but if its a big one it flashes and then loads the alternate one after each page load.

So i had to add a function that replaced the class names with the dark version.

You can view the code here.

Update: actually i never finished this post but i did solve this problem. I originally had one that just switched the style sheet and saved it to local storage (in the browser) as well to remember it.

Code is below... for real this time! 😉

Actually i just realised this was content rather than code, so ill link the code post.

darkmode toggle switch with local storage to remember the last selection 

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This is my test area for webdev. I keep a collection of code snippits here, mostly for my reference. Also if i find a good site, i usually add it here.

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"Olivia, my eldest daughter, caught measles when she was seven years old. As the illness took its usual course I can remember reading to her often in bed and not feeling particularly alarmed about it. Then one morning, when she was well on the road to recovery, I was sitting on her bed showing her how to fashion little animals out of coloured pipe-cleaners, and when it came to her turn to make one herself, I noticed that her fingers and her mind were not working together and she couldn’t do anything. 'Are you feeling all right?' I asked her. 'I feel all sleepy,' she said. In an hour, she was unconscious. In twelve hours she was dead. The measles had turned into a terrible thing called measles encephalitis and there was nothing the doctors could do to save her. That was...in 1962, but even now, if a child with measles happens to develop the same deadly reaction from measles as Olivia did, there would still be nothing the doctors could do to help her. On the other hand, there is today something that parents can do to make sure that this sort of tragedy does not happen to a child of theirs. They can insist that their child is immunised against measles. ...I dedicated two of my books to Olivia, the first was ‘James and the Giant Peach’. That was when she was still alive. The second was ‘The BFG’, dedicated to her memory after she had died from measles. You will see her name at the beginning of each of these books. And I know how happy she would be if only she could know that her death had helped to save a good deal of illness and death among other children."

I just checked google books for BFG, and the dedication is there. 

https://www.google.com.au/books/edition/_/quybcXrFhCIC?hl=en&gbpv=1 


Roald Dahl, 1986