| Latency Comparison Numbers (~2012) | |
| ---------------------------------- | |
| L1 cache reference 0.5 ns | |
| Branch mispredict 5 ns | |
| L2 cache reference 7 ns 14x L1 cache | |
| Mutex lock/unlock 25 ns | |
| Main memory reference 100 ns 20x L2 cache, 200x L1 cache | |
| Compress 1K bytes with Zippy 3,000 ns 3 us | |
| Send 1K bytes over 1 Gbps network 10,000 ns 10 us | |
| Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD |
| #!/bin/sh | |
| # Self signed certificate for Nginx HTTPS | |
| # | |
| openssl req -x509 -nodes -days 1825 -newkey rsa:2048 -keyout /etc/nginx/ssl/my-domain.key -out /etc/nginx/ssl/my-domain.crt |
| fzf_argfiles() { | |
| fzf --multi | tr '\n' ' ' | |
| } | |
| # for unstaged changes and untracked files | |
| fzf_dirty_files() { | |
| git status --porcelain | cut -c 1,2,3 --complement | fzf --multi --preview-window=up:50% --preview='git diff --color=always {}' | |
| } | |
| fzf_modified_files() { |
This is a story about how I tried to use Go for scripting. In this story, I’ll discuss the need for a Go script, how we would expect it to behave and the possible implementations; During the discussion I’ll deep dive to scripts, shells, and shebangs. Finally, we’ll discuss solutions that will make Go scripts work.
While python and bash are popular scripting languages, C, C++ and Java are not used for scripts at all, and some languages are somewhere in between.
| ffmpeg -i in.mkv -f srt -i in.srt -map 0:0 -map 0:1 -map 1:0 -c:v copy -c:a copy -c:s srt out.mkv |
I've been deceiving you all. I had you believe that Svelte was a UI framework — unlike React and Vue etc, because it shifts work out of the client and into the compiler, but a framework nonetheless.
But that's not exactly accurate. In my defense, I didn't realise it myself until very recently. But with Svelte 3 around the corner, it's time to come clean about what Svelte really is.
Svelte is a language.
Specifically, Svelte is an attempt to answer a question that many people have asked, and a few have answered: what would it look like if we had a language for describing reactive user interfaces?
A few projects that have answered this question:
Did some experimentation to figure out how different browsers behave with regards to the srcset and sizes attribute in various browsers. Documented below.
Vanilla No AMP No CSS Example: https://codepen.io/cathyxz/pen/vbLrrE
<img srcset="https://placekitten.com/200/200 200w,
https://placekitten.com/300/300 300w,
| build: | |
| ./node_modules/.bin/esbuild index.js --bundle --outfile=out.js |
