-
This is a numbered list.
-
I'm going to include a fenced code block as part of this bullet:
Code More Code
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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 |
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
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#!/bin/bash | |
# | |
# Example of how to parse short/long options with 'getopt' | |
# | |
OPTS=`getopt -o vhns: --long verbose,dry-run,help,stack-size: -n 'parse-options' -- "$@"` | |
if [ $? != 0 ] ; then echo "Failed parsing options." >&2 ; exit 1 ; fi | |
echo "$OPTS" |
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-- Two dashes start a one-line comment. | |
--[[ | |
Adding two ['s and ]'s makes it a | |
multi-line comment. | |
--]] | |
---------------------------------------------------- | |
-- 1. Variables and flow control. | |
---------------------------------------------------- |
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// Just before switching jobs: | |
// Add one of these. | |
// Preferably into the same commit where you do a large merge. | |
// | |
// This started as a tweet with a joke of "C++ pro-tip: #define private public", | |
// and then it quickly escalated into more and more evil suggestions. | |
// I've tried to capture interesting suggestions here. | |
// | |
// Contributors: @r2d2rigo, @joeldevahl, @msinilo, @_Humus_, | |
// @YuriyODonnell, @rygorous, @cmuratori, @mike_acton, @grumpygiant, |
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// | |
// Prelude | |
// A zero dependency, one file drop in for faster Typescript development with fewer bugs | |
// through type safe, functional programming. Comments are inline with links to blog posts motiviating the use. | |
// alias for a function with airity 1 | |
export type Fn<A, B> = (a: A) => B; | |
// alias for a function with airity 2 |
The package that linked you here is now pure ESM. It cannot be require()
'd from CommonJS.
This means you have the following choices:
- Use ESM yourself. (preferred)
Useimport foo from 'foo'
instead ofconst foo = require('foo')
to import the package. You also need to put"type": "module"
in your package.json and more. Follow the below guide. - If the package is used in an async context, you could use
await import(…)
from CommonJS instead ofrequire(…)
. - Stay on the existing version of the package until you can move to ESM.