hikaMaeng

package chela.kotlinJS.sql

import chela.kotlinJS.sql.DBType.localStorage

object ChSql{
    private val queries = mutableMapOf<String, Query>()
    private val Dbs = mutableMapOf<String, DataBase>()
    val mode = localStorage
    fun getDb(k:String) = Dbs[k] ?: throw Throwable("invalid getDb $k")
    fun addDb(k:String, vararg create:String){

JamieMason

Group Array of JavaScript Objects by Key or Property Value

Implementation

const groupBy = key => array =>
  array.reduce((objectsByKeyValue, obj) => {
    const value = obj[key];
    objectsByKeyValue[value] = (objectsByKeyValue[value] || []).concat(obj);
    return objectsByKeyValue;

marwei

Kafka 0.11.0.0 (Confluent 3.3.0) added support to manipulate offsets for a consumer group via cli kafka-consumer-groups command.

1. List the topics to which the group is subscribed

kafka-consumer-groups --bootstrap-server <kafkahost:port> --group <group_id> --describe

Note the values under "CURRENT-OFFSET" and "LOG-END-OFFSET". "CURRENT-OFFSET" is the offset where this consumer group is currently at in each of the partitions.

2. Reset the consumer offset for a topic (preview)

BretFisher

# first install pygmentize to the mac OS X or macOS system with the built-in python
sudo easy_install Pygments

# then add alias to your ~/.bash_profile or ~/.bashrc or ~/.zshrc etc.
alias pcat='pygmentize -f terminal256 -O style=native -g'

elithrade

Toggle safe mode: gs
Create new file: N
Delete file: d
Rename file: r
New directory: K
Open file: e
Move file: m
Open VimFilerExplorer: e
Open current directory in a new buffer: dl
Open current directory in a new split: ds

fgilio

/*
 * Handling Errors using async/await
 * Has to be used inside an async function
 */
try {
    const response = await axios.get('https://your.site/api/v1/bla/ble/bli');
    // Success 🎉
    console.log(response);
} catch (error) {
    // Error 😨

augbog

Free O'Reilly books and convenient script to just download them.

Thanks /u/FallenAege/ and /u/ShPavel/ from this Reddit post

How to use:

1. Take the download.sh file and put it into a directory where you want the files to be saved.
2. cd into the directory and make sure that it has executable permissions (chmod +x download.sh should do it)
3. Run ./download.sh and wee there it goes. Also if you do not want all the files, just simply comment the ones you do not want.

renaudtertrais

const zip = (arr, ...arrs) => {
  return arr.map((val, i) => arrs.reduce((a, arr) => [...a, arr[i]], [val]));
}

// example

const a = [1, 2, 3];
const b = [4, 5, 6];
const c = [7, 8, 9];

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

e9t

다양한 가격대의 서울시내 스시야를 시각화한 지도.

맛집 이름들이 겹치지 않게 하기 위해 forced layout을 적용했습니다.

• 데이터 수집: 수작업
• Author: Lucy Park
• License: Apache v2