syxolk

Programming languages

Javascript

• Syntax
  • for-of-Loop
  • const vs let
  • Spread-Syntax (...)
  • Optional Chaining (?.)
  • Nullish Coalescing Operator (??)
  • Arrow-Functions
• Destructuring Assignment

syxolk

class MapOfComplexData<
    Key,
    Value,
    HashFn extends (key: Key) => number = (key: Key) => number,
    EqualsFn extends (objA: Key, objB: Key) => boolean = (objA: Key, objB: Key) => boolean
> {
    private _data = new Map<number, {key: Key; value: Value}[]>();
    private _size: number = 0;
    private hashCode: HashFn;
    private equals: EqualsFn;

syxolk

type Employee = {
  canWalkVeryFast: boolean;
  numberOfKeystrokes: number;
  isNiceToTheBoss: "yes" | "no" | "sometimes";
};

function foobar<T extends keyof Employee>(key: T, value: Employee[T]) {
  console.log(key, value);
}

syxolk

Option Explicit

Sub IntersectionMacro()

    Dim set1 As New Scripting.Dictionary
    Dim set2 As New Scripting.Dictionary
    Dim result As New Scripting.Dictionary
    
    set1.Add "M AB 123", ""
    set1.Add "M CD 456", ""

syxolk

from docplex.mp.model import Model

m = Model("test")

a = m.binary_var(name="a")
b = m.binary_var(name="b")
c = m.binary_var(name="c")

m.add_constraint(m.logical_and(a, b) == c)
m.add_constraint(a == 1)

syxolk

from ortools.sat.python import cp_model

COUNTS = 10
MIN_VAL = 2
MAX_VAL = 4

class Slot:
    def __init__(self,model):
        self.model = model
        self.start = model.NewIntVar(-1,COUNTS-1,name="")#inclusive

syxolk

const arr = [1,1,0,0,1,1,1,0,1];

function sumConsecutiveOnes(arr) {
    return [...arr, 0].reduce((acc, value) => {
        if(value === 1) {
            acc.counter += 1;
        } else if(acc.counter > 0) {
            acc.output.push(acc.counter);
            acc.counter = 0;
        }

syxolk

import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.util.Arrays;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class RemoveAllTest {
    public static void main(String[] args) {

syxolk

This guide is mainly based on Arch's wiki, with some additions:

• I couldn't upgrade the database because the upgrade tool needs the postgis-2.4.so file
• The created cluster could not be used to upgrade from the old data because the locale was set to 'C' (needed to add --locale=en_US.UTF-8)
• The upgrade tool checks if the the new postgresql installation has a compatible postgis version. That means we need postgis 2.4 for postgresql 11. Unfortunately, we cannot install it over the package manager, instead we need to compile it from source.

# Stop currently running server
systemctl stop postgresql.service

# Install new packages

syxolk

Here's what I've done to install Ubuntu 18.04. on a Lenovo V330-14IKB laptop. The problem was that the live Ubuntu could not find the NVMe drive.

How get in the BIOS settings:

• In Windows: Open the Recovery page in the system settings
• Click "Restart Now"
• Go to "Troubleshoot" and restart to UEFI settings screen

This guide is not comprehensive and/or correct but may help you to get started:

1. Go to the BIOS -> Security -> Secure Boot -> Set to Disable