subfuzion

Common Options

-#, --progress-bar Make curl display a simple progress bar instead of the more informational standard meter.

-b, --cookie <name=data> Supply cookie with request. If no =, then specifies the cookie file to use (see -c).

-c, --cookie-jar <file name> File to save response cookies to.

hellerbarde

Latency numbers every programmer should know

L1 cache reference ......................... 0.5 ns
Branch mispredict ............................ 5 ns
L2 cache reference ........................... 7 ns
Mutex lock/unlock ........................... 25 ns
Main memory reference ...................... 100 ns             
Compress 1K bytes with Zippy ............. 3,000 ns  =   3 µs
Send 2K bytes over 1 Gbps network ....... 20,000 ns  =  20 µs
SSD random read ........................ 150,000 ns  = 150 µs

Read 1 MB sequentially from memory ..... 250,000 ns = 250 µs

jboner

Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference                           0.5 ns
Branch mispredict                            5   ns
L2 cache reference                           7   ns                      14x L1 cache
Mutex lock/unlock                           25   ns
Main memory reference                      100   ns                      20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy             3,000   ns        3 us
Send 1K bytes over 1 Gbps network       10,000   ns       10 us
Read 4K randomly from SSD*             150,000   ns      150 us          ~1GB/sec SSD

pierrejoubert73

How to add a collapsible section in markdown

1. Example

Click me

Heading

1. Foo
2. Bar
   • Baz

• Qux

citrusui

How do I dropdown?

This is how you dropdown.

<details>
<summary>How do I dropdown?</summary>
<br>
This is how you dropdown.

sorenlouv

import React, { Component } from 'react';

export default function withPropsChecker(WrappedComponent) {
  return class PropsChecker extends Component {
    componentWillReceiveProps(nextProps) {
      Object.keys(nextProps)
        .filter(key => {
          return nextProps[key] !== this.props[key];
        })
        .map(key => {

johnpmitsch

// 1. Go to https://auth.quicknode.com/signup
// 2. Spin up ethereum, sepolia, or polygon endpoint and add Token/NFT RPC API v2 add-on
// 3. npm/yarn install @quicknode/sdk in typescript or javascript project
// 4. Copy and paste code in project and replace endpointUrl and wallet value below
// 5. profit!

import Core from "@quicknode/sdk/core";

(async () => {
  const core = new Core({

zjhuntin

This is a basic example of using SOCKS.

From the computer you want to browse on you'll make an ssh connection to the computer you want to browse from.
In this example it'll be my laptop connecting to my desktop.

Run: ssh -D <port, I use 10000> <user>@<hostname of desktop>

Now, in a browser you don't normally use (I'm using firefox), go to network proxy.

Set Manual porxy configuration

albertorestifo

  componentDidUpdate(prevProps) {
    console.log('Rrow update diff:');

    const now = Object.entries(this.props);
    const added = now.filter(([key, val]) => {
      if (prevProps[key] === undefined) return true;
      if (prevProps[key] !== val) {
        console.log(`${key}
          - ${JSON.stringify(val)}

jturel

# create a new organization $MYORG

org = Organization.find_by_name($MYORG)

hosts = []
50000.times { hosts << { name: SecureRandom.uuid, organization_id: org.id } }
host_ids = ::Host::Managed.import(hosts, validate: false).ids

facets = host_ids.map { |id| { host_id: id } }
facet_ids = Katello::Host::SubscriptionFacet.import(facets, validate: false).ids