Webpack does have the option to control the value of __dirname in bundled code. However, the description of the API (link [https://webpack.js.org/configuration/node/#node__dirname]) is difficult to understand without a concreted example. From the docs > node.__dirname string boolean = false Options: - true: The dirname

Updated: I have published the snippets in this post to an npm package named enhanced-reducer [https://www.npmjs.com/package/enhanced-reducer]. Some of the killing features that IMHO useReducer should support natively to convince react programmers to switch from using redux to useReducer hook are * Provide a convenient way to

1. Firstly, you need to register an SRCDS_TOKEN token from this website [https://steamcommunity.com/dev/managegameservers] ( source [https://developer.valvesoftware.com/wiki/Counter-Strike:_Global_Offensive_Dedicated_Servers] ) 2. Run the following command to start a csgo dedicated server docker run -d --net=host -e SRCDS_PORT=27016 -e

When you are not sure how an API/library call/language instruction works, you absolutely should add several tests on it. * It does not hurt your test performance much * It assures the expected behavior when the API changes, library updates, language compiler/interpreter upgrades. Let me show an example with

Timing is critical in programming contests. A well-prepared template will help you save the implementation cost once the solution is ready. This is my template #include using namespace std; #define V vector #define For(i,a,b) for(auto (i) = (a); (i) < (b); (i)++) #define rep(i,n) For(i,

In this post, I introduce how to clone a DVD/CD to a PC, and re-mount the disc from the clone on the PC (without the physical disc). I also show how to bypass the CSS (Content Scramble System) protection. Part 1: clone the disc * Figure out the device bound

* With GCC, add -S option gcc -x c -c -O4 -Wall -g -lineinfo -masm=intel -S main.c main.s will be created in the current directory and includes the assembly code To view assembly code along with source code, use -Wa,-adhlng. source [https://www.systutorials.com/generate-a-mixed-source-and-assembly-listing-using-gcc/] gcc

SCL (software collection) is a very handy tool to control the GCC version in CentOS. Unfortunately, there currently no equivalent in Ubuntu. Here is how to switch GCC version in CentOS with SCL. # gcc --version gcc (GCC) 4.8.5 20150623 (Red Hat 4.8.5-39) # sudo yum install centos-release-scl

Check system free disk space with: sudo df -h. Sample result udev 3.9G 0 3.9G 0% /dev tmpfs 788M 1.1M 787M 1% /run /dev/nvme0n1p1 249G 248G 519M 100% / tmpfs 3.9G 0 3.9G 0% /dev/shm tmpfs 5.0M 0 5.0M 0% /run/lock

It commonly happens when a DevOps developer wants to remotely/non-interactively rolling an update to a Kubernetes deployment, for example after a successful build. And this post will explain how. This post assumes that the client machine has aws credentials and awscli binary installed. * If you want to install awscli

Falsy values are the values evaluated negative in the if condition. Or exactly defined from ECMA specs, these values are evaluated as false when converted to boolean Or these values make Boolean function return false when being taken as a parameter. The following values are considered falsy in Javascript. All

It usually happens that you can not run a downloaded binary from the command line. The OS would complain that > "watchman" cannot be opened because the developer cannot be verified. macOS cannot verify that this app is free from malware. Chrome downloaded this file today at 9:30 AM from

This post will show how to let your ubuntu recognized a new volume size. * Check current space df -h Filesystem Size Used Avail Use% Mounted on udev 3.9G 0 3.9G 0% /dev tmpfs 788M 1.3M 787M 1% /run /dev/nvme0n1p1 31G 27G 4.3G 87% / tmpfs 3.

The goal: get the aws command from the awscli package to a custom directory, namely /home/transang/my-python-packages. Initially, everything was simple. But latterly it got complicated as many bugs appeared. I will introduce the bugs one by one before coming up with a stable solution for this use case.

Assume the private key location is in /home/transang/custom-key.pem. Use this command to specify the key. GIT_SSH_COMMAND='ssh -i /home/transang/custom-key.pem' git@github.com:transang/my-repo.git source [https://stackoverflow.com/a/29754018/1398479]

Ghostscript is a very useful tool in this situation. * Install ghostscript (the gs command line). sudo apt install -yq ghostscript * To extract pages from the 3rd page to the 5th page in in.pdf , write output to out.pdf gs -sDEVICE=pdfwrite -dNOPAUSE -dBATCH -dSAFER -dFirstPage=3 -dLastPage=5 -sOutputFile=

Use fontforge. To convert from ipam.ttc to ipam.ttf sudo apt install -yq fontforge fontforge -lang=ff -c 'Open("ipam.ttc"); Generate("ipam.ttf"); Close();' This command also prints the font names. Copyright (c) 2000-2014 by George Williams. See AUTHORS for Contributors. License GPLv3+: GNU GPL version 3

gperftools [https://github.com/gperftools/gperftools] is a very handy tool made by google to profile an execution. It is well coupled with pprof [https://github.com/google/pprof]. In general, gperftools generates profile data, pprof is used to view/visualize the profile result. To install gperftools git clone https:

年末調整の計算仕方 例えば年収は500万円である。そうすると、収入金額は500万円である。 * 年末調整を行う。このリンク [https://www.keisan.nta.go.jp/r1yokuaru/cat2/cat21/cat213/cid160.html]から 給与所得控除を計算する 給与所得控除の計算仕方給与所得控除=500万 x 20% + 54万=154万 * 所得金額を計算する 所得金額=収入金額-給与所得控除=500万-154万=346万 * 所得控除を計算する。以下の項目がある。参考リンク [https://www.keisan.nta.go.jp/r1yokuaru/cat2/cat22/cid055.html] 所得控除この中の控除は特に注意するのは基礎控除という控除、みんなに適用する。令和１年まで一律に38万円だったが、令和２

To get the number of sockets, cores per socket, threads per core lscpu | grep -E '^Thread|^Core|^Socket|^CPU\(' To get cache size, CPU name, frequency rate cat /proc/cpuinfo To get GPGPU information (nvidia driver is required), including memory spaces, driver version, cuda toolkit version, gpgpu name,

In my PC running Ubuntu (19.04), the bluetooth keyboard occasionally stops working unconditionally. I tried to open system settings, navigate to the bluetooth control, try switching on/off the bluetooth, but the on/off button never responses or it always reflects incorrect status. In this situation, a soft reset

This post shows some basics of networking Basic Firstly, review the 7 layers of the OSI model: 1. Physical: coax, fiber, wireless, hub, repeater 2. Data link: ethernet, ppp, switch, bridge, arp 3. Network: ip, ICMP, router 4. Transport: TCP, UDP 5. Session: API, socket, sock 6. Presentation: SSL, SSH,

In Settings, Trackpad, More Gestures, uncheck "Swipe between pages". Google Chrome will look at this setting and disable page navigation with two fingers.

TLDR: Functional Reactive Programming (FRP) is a Reactive Programming paradigm powered by Functional Programming. Reactive Programming Programming paradigm Subjective Objective Proactive paradigm proactive passive Reactive paradigm observable reactive In (traditional) proactive programming, when a source changes, all its dependence is triggered to apply the changes. class Proactive { constructor(passive){this.

All following snippets are equivalent const React = require('react') //or import React from 'react' const element = React.createElement('div', {id: 'my-div'}, 'hello world') const element = const element = { $$typeof: Symbol.for('react.element'), type: 'div', props: { id: 'my-div', children: 'hello world' } } 'div' can be replaced with react component definition