It sometimes happens that GCP does not send invitation emails when adding new users to the project. You can use the following template to obtain the invitation URL. https://console.cloud.google.com/invitation?project=&account=&memberEmail= If you are logged in using multiple accounts in the same browser. https:

There is a useful unicode-range feature in the @font-face css at-rule. The unicode-range can be used to: * Specify the character (glyph) set to which a font can be applied. * Slice the font files into different parts, especially grouping frequently used characters into a set, to reduce the total size to

Javascript objects have an internal property called [[Prototype]] for property lookup and inheritance. When looking for an object property, javascript checks the object's own property first, if not found, it will continue with the object's [[Prototype]], if not found again, look for [[Prototype]] of its [[Prototype]] until reaching null or

Sometimes, you see Object.create(null) and don't understand why not just using {}. After more than ten years of using javascript, I have found a relevant bug I had to use Object.create(null). Problem The client provides a string key and arbitrary value, you want to store list of

I did some tests to get insight into how React orders its render, effect, and cleanup functions. I share the results in this post. I used react version: 18.3.1. The main component is defined below. let id = 0 function App({children}: {children: ReactNode}) { const myId = ++id console.log(

To prevent your web page from appearing on search engine results (google, bing, yahoo, etc.), use noindex meta tag, and DON'T use robots.txt for this purpose.

In Linux, you can use the following command to create a virtual audio output device. With this virtual device, you can turn the volume in. This will not make any sound physically, and you can stream the desktop sound to other apps like streaming/recording apps. Without the virtual device,

If year is non-negative: Sakamoto algorithm implementation in C++: 0 = sunday, 1 = monday, ..., 6 = saturday. static int t[] = {0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4}; int dow(int y, int m, int d) { y -= m<3; return (d + t[m-1] + y + y/4 - y/100 + y/400) % 7; } In Javascript: // m = 1, 2, ..., 12 // result: 0 = sun, 1 = mon, ..., 6 = sat function dayOfWeek(y, m, d) { if (m<3) y-- m = [0, 3, 2, 5, 0, 3, 5, 1, 4, 6, 2, 4][m-1] return (d + m + y + ~~(y/4) - ~~(y/100) + ~~(y/400)) % 7 }

Try this in your interpreter such as javascript or python: Input: .1 + .2 Output: 0.30000000000000004 Input: .1 + .2 === .3 Output: false Rationale: we (humans) use decimal representation for numbers (the number we write in the console, the number printed out), while internally the interpreters use binary representation which causes

This post comes from the journey when I tried to find a deterministic hash function that maps different natural numbers (for instance, an ID in a database) to different strings with the shortest length possible and an absolute zero possibility of collision. Eventually, I found a perfect answer for this,

Recently Lens disallows the use of its app without an account. The app even hides the close button. Here is how to install a working version 5.4 without an account. Download Lens 5.4 binary from here: https://gateway.pinata.cloud/ipfs/QmVVpMtbecfsyofgKZ2buHM7Xd6Shcr6HFJWNciRLeMPVx And add to /etc/hosts: 127.

Sometimes, your MySQL client faces thsi error: MySQL: ERROR 1040: Too many connections To  get current max connections setting show variables like "%max_connections%"; Result max_connections 151 mysqlx_max_connections 100 Default value is 151. To update value in the current session Note: the value will be reset when

This topic discusses how base64 works, and the usage of the padding and non-alphabet characters. RFC4648 link: https://datatracker.ietf.org/doc/html/rfc4648#section-4 Base64 encodes a binary buffer to ASCII using the following 65 characters for encoding. Table 1: The Base 64 Alphabet Value Encoding Value Encoding Value

Sometimes, you observe that the database servers (postgres, redis, etc.) being disconnected after being idle for a while. This is due to the keepalive config, in which tcp connections are killed if they are detected not being used for a specific time range. This configuration is imposed by numerous components

Yarn 2 gitignore content Default option (non-zero install + node_modules linker) .pnp.* .yarn/* !.yarn/patches !.yarn/plugins !.yarn/releases !.yarn/sdks !.yarn/versions node_modules node_modules entry can be removed unless you are using nodeLinker: node-modules option in .yarnrc.yml. Zero-install option If you have no idea what zero-install

This post shows the best practices to create a hybrid npm package, which supports both commonjs and ES module types. Background CommonJS module: const {myMethod} = require('my-package') ES module: import {myMethod} from 'my-package' How? I will show how to make your package my-package support both types of import. In the

To get stat about system storage sudo du -h --max-depth=1 / 2>/dev/null | sort -h Result: 0 /dev 0 /proc 0 /sys 4.0K /home 4.0K /mnt 4.0K /srv 8.0K /build 12K /media 16K /lost+found 60K /tmp 192K /ephe 2.9M /run 5.8M /etc

To find where the font files are stored in the system, use the following command line fc-list | grep For example: # fc-list | grep '游明朝' /home/transang/.local/share/fonts/Mincho/Yu Mincho Demibold.ttf: Yu Mincho,游明朝,Yu Mincho Demibold,游明朝 Demibold:style=Demibold,Bold /home/transang/.local/share/fonts/Mincho/

In Google Play Console, if you get the following error. This post will show how to solve it. Error This release includes the com.google.android.gms.permission.AD_ID permission but your declaration on Play Console says your app doesn't use advertising ID. You must update your advertising ID

I share several useful javascript/nodejs resources. * Everyday javascript, list of trending javascript projects including short-term trending stuffs: https://bestofjs.org/ * Medium/long-term trending javascript technologies, annual Javascript survey (multiple languages available): https://stateofjs.com/ Its sibling css version (multiple languages available): https://stateofcss.com/ * Learn javascript through efficient code

I list several useful resources for Flutter dev. * Official home page: https://docs.flutter.dev/ * Flutter Layout Cheat Sheet: https://medium.com/flutter-community/flutter-layout-cheat-sheet-5363348d037e, snapshot. * From the same author, Flutter Animation Cheat Sheet: https://medium.com/flutter-community/flutter-animations-cheat-sheet-7f8cebfb850c, snapshot, demo. * Inherited widget in deep (in Japanese, Flutter大学): https://blog.flutteruniv.