richhickey

;annotation syntax

(import [java.lang.annotation Retention RetentionPolicy Target ElementType]
        [javax.xml.ws WebServiceRef WebServiceRefs])
(definterface Foo (foo []))

;annotation on type
(deftype ^{Deprecated true 
            Retention RetentionPolicy/RUNTIME 
            javax.annotation.processing.SupportedOptions ["foo" "bar" "baz"]

psayre23

Below are the Big O performance of common functions of different Java Collections.


List                 | Add  | Remove | Get  | Contains | Next | Data Structure
---------------------|------|--------|------|----------|------|---------------
ArrayList            | O(1) |  O(n)  | O(1) |   O(n)   | O(1) | Array
LinkedList           | O(1) |  O(1)  | O(n) |   O(n)   | O(1) | Linked List
CopyOnWriteArrayList | O(n) |  O(n)  | O(1) |   O(n)   | O(1) | Array

chranderson

// check version
node -v || node --version

// list locally installed versions of node
nvm ls

// list remove available versions of node
nvm ls-remote

// install specific version of node

xpepermint

Commands

Install dependencies:

npm install -g @microsoft/rush

Initialize the project:

leonoel

(ns asyncawait
  (:refer-clojure :exclude [await])
  (:require [cloroutine.core :refer [cr]]))

(defmacro async [& body]
  `(js/Promise. (fn [s# f#]
                  (spawn (cr {await thunk}
                           (try (s# (do ~@body))
                                (catch :default e# (f# e#))))))))

wpik

import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.convert.converter.Converter;
import org.springframework.data.mongodb.core.convert.MongoCustomConversions;

import java.time.OffsetDateTime;
import java.time.ZoneOffset;
import java.util.List;

@Configuration

mkfares

Common zsh Keyboard Shortcuts on macOS

Navigation

CTRL + A : Move the cursor to the beginning of the line
CTRL + E : Move the cursor to the end of the line
OPTION + Left Arrow : Move the cursor one word backward
OPTION + Right arrow : Move the cursor one word forward
Left Arrow : Move the cursor one character backward
Right Arrow : Move the cursor one character forward

Yengas

stages:
  - test

integration-test:
  extends: .node-cache
  stage: test
  image: node:14-alpine

  services:
    - name: docker:20.10.1-dind