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
While the following structure is not an absolute requirement or enforced by the tools, it is a recommendation based on what the JavaScript and in particular Node community at large have been following by convention.
Beyond a suggested structure, no tooling recommendations, or sub-module structure is outlined here.
lib/
is intended for code that can run as-issrc/
is intended for code that needs to be manipulated before it can be used
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GOCMD=go | |
GOTEST=$(GOCMD) test | |
GOVET=$(GOCMD) vet | |
BINARY_NAME=example | |
VERSION?=0.0.0 | |
SERVICE_PORT?=3000 | |
DOCKER_REGISTRY?= #if set it should finished by / | |
EXPORT_RESULT?=false # for CI please set EXPORT_RESULT to true | |
GREEN := $(shell tput -Txterm setaf 2) |
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{ | |
{I have|I've} been {surfing|browsing} online more than {three|3|2|4} hours today, yet I never found any interesting article like yours. {It's|It | |
is} pretty worth enough for me. {In my opinion|Personally|In my view}, if all {webmasters|site owners|website owners|web owners} and bloggers made good content as | |
you did, the {internet|net|web} will be {much more|a lot more} | |
useful than ever before.| | |
I {couldn't|could not} {resist|refrain from} commenting. {Very well|Perfectly|Well|Exceptionally well} written!| | |
{I will|I'll} {right away|immediately} {take hold of|grab|clutch|grasp|seize|snatch} | |
your {rss|rss feed} as I {can not|can't} {in finding|find|to find} your {email|e-mail} subscription {link|hyperlink} or {newsletter|e-newsletter} service. Do {you have|you've} any? | |
{Please|Kindly} {allow|permit|let} me {realize|recognize|understand|recognise|know} {so that|in order that} I {may just|may|could} subscribe. | |
Thanks.| |
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const buffer = require('buffer'); | |
const crypto = require('crypto'); | |
// Demo implementation of using `aes-256-gcm` with node.js's `crypto` lib. | |
const aes256gcm = (key) => { | |
const ALGO = 'aes-256-gcm'; | |
// encrypt returns base64-encoded ciphertext | |
const encrypt = (str) => { | |
// The `iv` for a given key must be globally unique to prevent |
None of the string methods modify this
– they always return fresh strings.
-
charAt(pos: number): string
ES1Returns the character at index
pos
, as a string (JavaScript does not have a datatype for characters).str[i]
is equivalent tostr.charAt(i)
and more concise (caveat: may not work on old engines).
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using System; | |
using Newtonsoft.Json; | |
namespace JsonConverters | |
{ | |
/// <summary> | |
/// Handles converting JSON string values into a C# boolean data type. | |
/// </summary> | |
public class BooleanJsonConverter : JsonConverter | |
{ |
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