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Ola Theander olatheander

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  • Myola Consulting AB
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@kennypete
kennypete / navigating_the_modes_of_Vim.md
Created April 18, 2024 20:46
Navigating the modes of Vim

Navigating the modes of Vim

This diagram illustrates navigating through Vim’s modes. It was built factoring Vim 9 (i.e., all its modes, including up to two new modes, cr and cvr, in November 2023). Information about the state() and 'showmode' is provided too.

SVG version

Some features are only available in the SVG version. It is not provided directly from within this gist’s files because SVGs do not always play nicely in GitHub (particularly, refusing to display embedded fonts).

The SVG version includes hover text help, which shows pertinent information about the underlying key, command, mode, etc.

@peterhellberg
peterhellberg / tibber-graphql-query.go
Last active December 3, 2021 07:29
package main
import (
"context"
"encoding/json"
"flag"
"os"
"time"
"github.com/c7/graphql"
@guss77
guss77 / reset-tb
Last active February 21, 2025 07:03
Script to reset the XHCI of a Thunderbolt connection in case the kernel stops it
#!/bin/bash
# As described in https://bugs.launchpad.net/bugs/1766076
### Installation Instructions:
# 1. Install file into `/usr/local/bin/reset-tb`
#
# 2. Optional: allow password less sudo by creating a file `/etc/sudoers.d/allow-reset-tb` with the following content:
# ----8<-----
# <your username> ALL = NOPASSWD: /usr/local/bin/reset-tb
# ----8<-----
#
@rambabusaravanan
rambabusaravanan / detect-js-framework.js
Last active October 17, 2025 14:16
Detect JS Framework used in a Website
// Paste these lines into website's console (Win/Linux: Ctrl + Shift + I / Mac: Cmd + Alt + I)
if(!!window.React ||
!!document.querySelector('[data-reactroot], [data-reactid]') ||
Array.from(document.querySelectorAll('*')).some(e => e._reactRootContainer !== undefined || Object.keys(e).some(k => k.startsWith('__reactContainer')))
)
console.log('React.js');
if(!!document.querySelector('script[id=__NEXT_DATA__]'))
console.log('Next.js');
@rgl
rgl / wait_for_http_200.sh
Last active February 18, 2025 11:37
Wait for an HTTP endpoint to return 200 OK with Bash and curl
bash -c 'while [[ "$(curl -s -o /dev/null -w ''%{http_code}'' localhost:9000)" != "200" ]]; do sleep 5; done'
# also check https://gist.github.com/rgl/c2ba64b7e2a5a04d1eb65983995dce76
@lqd
lqd / gist:1c841dea193698bf50fefa19c6b3fb99
Last active December 10, 2023 19:17
Some of my favorite development streams and shows
Why coding streams/shows are interesting to me: in some livestreams, the experience is very similar to pair programming,
but those people are experts. In VODs, it's more about problem solving and learning skills and approaches. The devs are really good
at what they do and there is *always* a lot to learn.
In no particular order:
1) Handmade Hero
About the author: Casey Muratori. Worked at RAD.
Description and why I like it: It kinda started the whole thing for me. Casey is coding a complete game and engine on stream,
from scratch, one hour a day. He knows what he's doing on so many of the domains of game development and regular programing,
@jboner
jboner / latency.txt
Last active November 17, 2025 14:46
Latency Numbers Every Programmer Should Know
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
@paulsmith
paulsmith / echo.go
Created January 12, 2011 06:09
A simple echo server testing a few interesting Go language features, goroutines and channels.
// $ 6g echo.go && 6l -o echo echo.6
// $ ./echo
//
// ~ in another terminal ~
//
// $ nc localhost 3540
package main
import (