| # https://linuxconfig.org/how-to-rollback-pacman-updates-in-arch-linux | |
| $ grep -a upgraded /var/log/pacman.log| grep 2020-11-30 > /tmp/lastupdates.txt | |
| $ awk '{print $4}' /tmp/lastupdates.txt > /tmp/lines1;awk '{print $5}' /tmp/lastupdates.txt | sed 's/(/-/g' > /tmp/lines2 | |
| $ paste /tmp/lines1 /tmp/lines2 > /tmp/lines | |
| $ tr -d "[:blank:]" < /tmp/lines > /tmp/packages | |
| $ cd /var/cache/pacman/pkg/ | |
| $ for i in $(cat /tmp/packages); do sudo pacman --noconfirm -U "$i"*; done |
| for (i = 0, j = 0; i < n && j < m; i++) { | |
| if (txt.charAt(i) == pat.charAt(j)) j++; | |
| else { | |
| i -= j; | |
| j = 0; | |
| } | |
| } | |
| if (j == m) return i - m; // found | |
| else return n; // not found |
| // You are given two non-empty linked lists representing two non-negative integers. | |
| // The digits are stored in reverse order, and each of their nodes contains a single digit. | |
| // Add the two numbers and return the sum as a linked list. | |
| // You may assume the two numbers do not contain any leading zero, except the number 0 itself. | |
| // | |
| // Example 1: | |
| // | |
| // Input: l1 = [2,4,3], l2 = [5,6,4] | |
| // Output: [7,0,8] | |
| // Explanation: 342 + 465 = 807. |
| { | |
| "[html]": { | |
| "editor.defaultFormatter": "esbenp.prettier-vscode" | |
| }, | |
| "[jsonc]": { | |
| "editor.defaultFormatter": "esbenp.prettier-vscode" | |
| }, | |
| "[scss]": { | |
| "editor.defaultFormatter": "esbenp.prettier-vscode", | |
| "editor.suggest.insertMode": "replace" |
| [ | |
| { | |
| "key": "alt+r", | |
| "command": "workbench.action.reloadWindow", | |
| "when": "editorFocus" | |
| }, | |
| { | |
| "key": "ctrl+tab", | |
| "command": "workbench.action.nextEditor" | |
| }, |
| (async function addRandomWordToImgs() { | |
| async function getRandomWord() { | |
| const word = await fetch("https://random-word-api.herokuapp.com/word"); | |
| const ary = await word.json(); | |
| return ary.shift(); | |
| } | |
| async function getAllImgElements() { | |
| return document.querySelectorAll("img"); | |
| } |
| type DeepReadonlyObject<T> = { readonly [K in keyof T]: DeepReadonly<T[K]> }; | |
| type DeepReadonly<T> = T extends (infer E)[] ? | |
| ReadonlyArray<ReadonlyArray<DeepReadonlyObject<E>>> : | |
| T extends object ? DeepReadonlyObject<T> : | |
| T; |
Most of the times, type aliases in TypeScript are used to alias a more complex type, like a union of other types, to a reusable name. On the other hand, interfaces are used for more traditional object-oriented purposes, where you define the shape of an object and then use that as a contract for function parameters or for a class to implement.
fundamental.ts
type Pet = IDog | ICat;
interface IAnimal {
age: number;
eat(): void;| Host aws-eu-north-1 | |
| HostName ec2-16-170-180-221.eu-north-1.compute.amazonaws.com | |
| User ubuntu | |
| IdentityFile /home/rivanov/.ssh/aws_ed25519-eu-north-1 |
| Section "InputClass" | |
| Identifier "touchpad" | |
| Driver "libinput" | |
| MatchIsTouchpad "on" | |
| Option "Tapping" "on" | |
| EndSection |