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@xposedbones
xposedbones / map.js
Last active September 10, 2025 14:27
Javascript Map range of number to another range
Number.prototype.map = function (in_min, in_max, out_min, out_max) {
return (this - in_min) * (out_max - out_min) / (in_max - in_min) + out_min;
}
@steipete
steipete / ios-xcode-device-support.sh
Last active May 11, 2025 13:30
Using iOS 15 devices with Xcode 12.5 (instead of Xcode 13)
# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)
# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions
# (A similar approach works for older versions too, just change the version number after DeviceSupport)
FROM ubuntu:16.04
RUN PACKAGES="\
php-cli \
php-mysql \
php-intl \
php-xml \
php-curl \
php-dom \
" && \
@squarism
squarism / iterm2.md
Last active September 14, 2025 14:06
An iTerm2 Cheatsheet

In the below keyboard shortcuts, I use the capital letters for ready clarity but this does not imply shift, if shift is needed, I will say shift. So + D does not mean hold shift. + Shift + D does of course.

Tabs and Windows

Function Shortcut
New Tab + T
Close Tab or Window + W (same as many mac apps)
Go to Tab + Number Key (ie: ⌘2 is 2nd tab)
Go to Split Pane by Direction + Option + Arrow Key
@paulirish
paulirish / what-forces-layout.md
Last active September 11, 2025 10:17
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
@CMCDragonkai
CMCDragonkai / http_streaming.md
Last active September 12, 2025 09:53
HTTP Streaming (or Chunked vs Store & Forward)

HTTP Streaming (or Chunked vs Store & Forward)

The standard way of understanding the HTTP protocol is via the request reply pattern. Each HTTP transaction consists of a finitely bounded HTTP request and a finitely bounded HTTP response.

However it's also possible for both parts of an HTTP 1.1 transaction to stream their possibly infinitely bounded data. The advantages is that the sender can send data that is beyond the sender's memory limit, and the receiver can act on

@MarkoCen
MarkoCen / convertImgToBase64.js
Last active May 17, 2025 09:39
Read Image (PNG/JPEG) From Disk and Convert it to base64-encoded string on Node Server
import fs from 'fs';
import path from 'path';
const convert = (imgPath) => {
// read image file
fs.readFile(imgPath, (err, data)=>{
// error handle
if(err) {
throw err;
}
@mickaelandrieu
mickaelandrieu / upgrade2.3-to-2.7.md
Last active March 18, 2025 14:11
Complete migration guide from Symfony 2.3 LTS to Symfony 2.7 LTS

From Symfony 2.3 to Symfony 2.7: the complete guide

Objectives

  • assume your code doesn't use any deprecated from versions below Symfony 2.3
  • update dependencies from 2.3 to 2.7
  • do not support "deprecated", be "Symfony3-ready"
  • list tasks component by component, bundle by bundle.
#!/bin/bash
if [ "$GIT_SSH_KEY" != "" ]; then
echo "Cleaning up SSH config" >&1
echo "" >&1
# Now that npm has finished running,
# we shouldn't need the ssh key/config anymore.
# Remove the files that we created.
rm -f ~/.ssh/config
rm -f ~/.ssh/deploy_key
@mingfang
mingfang / convert id_rsa to pem
Last active December 12, 2024 12:13
Convert id_rsa to pem file
openssl rsa -in ~/.ssh/id_rsa -outform pem > id_rsa.pem
chmod 600 id_rsa.pem