I have moved this over to the Tech Interview Cheat Sheet Repo and has been expanded and even has code challenges you can run and practice against!
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var parser = document.createElement('a'); | |
parser.href = "http://example.com:3000/pathname/?search=test#hash"; | |
parser.protocol; // => "http:" | |
parser.hostname; // => "example.com" | |
parser.port; // => "3000" | |
parser.pathname; // => "/pathname/" | |
parser.search; // => "?search=test" | |
parser.hash; // => "#hash" | |
parser.host; // => "example.com:3000" |
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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 |
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#!/bin/sh | |
## | |
# Install autoconf, automake and libtool smoothly on Mac OS X. | |
# Newer versions of these libraries are available and may work better on OS X | |
# | |
# This script is originally from http://jsdelfino.blogspot.com.au/2012/08/autoconf-and-automake-on-mac-os-x.html | |
# | |
export build=~/devtools # or wherever you'd like to build |
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// # Mocha Guide to Testing | |
// Objective is to explain describe(), it(), and before()/etc hooks | |
// 1. `describe()` is merely for grouping, which you can nest as deep | |
// 2. `it()` is a test case | |
// 3. `before()`, `beforeEach()`, `after()`, `afterEach()` are hooks to run | |
// before/after first/each it() or describe(). | |
// | |
// Which means, `before()` is run before first it()/describe() |
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var lame = require('lame'); | |
var through = require('through2'); | |
var fs = require('fs'); | |
var d3 = require('d3'); | |
var file = fs.createReadStream('source.mp3'); | |
var frames = [], frameBuffer = []; | |
var format; | |
var decoder = new lame.Decoder(); |
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{ | |
"presets": [ | |
["es2015", { | |
"es2015": { | |
"loose": true, | |
"modules": false | |
} | |
}], "react" | |
] | |
} |
Disclaimer: This piece is written anonymously. The names of a few particular companies are mentioned, but as common examples only.
This is a short write-up on things that I wish I'd known and considered before joining a private company (aka startup, aka unicorn in some cases). I'm not trying to make the case that you should never join a private company, but the power imbalance between founder and employee is extreme, and that potential candidates would
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/* | |
* 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 😨 |
If you enjoyed reading this, I'm intending to do more blogging like this over here: https://cdgd.tech
This is not a complaint about Webpack or v4 in any way. This is just a record of my process trying it out so I could provide feedback to the webpack team
Hmm... I don't see any docs for 4.0 on https://webpack.js.org. I guess I'll just wing it.
All I need to do is npm i -D webpack@next
, right?
+ webpack@4.0.0-beta.2
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