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
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stages: | |
- test | |
integration-test: | |
extends: .node-cache | |
stage: test | |
image: node:14-alpine | |
services: | |
- name: docker:20.10.1-dind |
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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 |
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(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#)))))))) |
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// 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 |
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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 | |
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;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"] |