effrenus

10 React mini-patterns

Optimization killers

JavaScript Errors And Stack Traces In Depth

• Error.captureStackTrace(obj, fun)

2017年08月12日

effrenus

### Keybase proof

I hereby claim:

  * I am effrenus on github.
  * I am effrenus (https://keybase.io/effrenus) on keybase.
  * I have a public key ASD_vOyOYMb530AUQL2F4KYf_O8iFtAQwcpcy790IwP6gQo

To claim this, I am signing this object:

effrenus

# import config.
# You can change the default config with `make cnf="config_special.env" build`
cnf ?= config.env
include $(cnf)
export $(shell sed 's/=.*//' $(cnf))

# import deploy config
# You can change the default deploy config with `make cnf="deploy_special.env" release`
dpl ?= deploy.env
include $(dpl)

effrenus

// https://pikabu.ru/page/interview/frontend/
const check = (taskNum, fn, cmp = (a,b) => a === b) => 
  (expected, ...vals) => 
    console.assert(
        cmp(fn(...vals), expected),
        `\n[Task #${taskNum}] Test failed: \n\t\texpected [${expected}] \n\t\treturns [${fn(...vals)}] \n\t\tFunction args: (${vals.map(v => typeof v == 'string' ? `'${v}'` : v).join(', ')})`
    )

// Task 14.
/**

effrenus

Владей собой среди толпы смятенной,
Тебя клянущей за смятенье всех,
Верь сам в себя наперекор вселенной,
И маловерным отпусти их грех;

Пусть час не пробил, жди, не уставая,
Пусть лгут лжецы, не снисходи до них;
Умей прощать и не кажись, прощая,
Великодушней и мудрей других.

effrenus

{
	const globalScope = new Map();
    const getVar = (name) => {
    	if (!globalScope.has(name)) {
        	throw new Error("Unknown variable name");
        }
        return globalScope.get(name);
    };
    const filterEmpty = (arr) => arr.filter(v => typeof v === "number" || !v);
    

effrenus

<?xml version="1.0" encoding="UTF-8"?>
<gpx creator="GPS to GPX (https://npm.im/gps-to-gpx)" version="1.1" xmlns="http://www.topografix.com/GPX/1/1" xmlns:gpxx="http://www.garmin.com/xmlschemas/GpxExtensions/v3" xmlns:gpxtpx="http://www.garmin.com/xmlschemas/TrackPointExtension/v2" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.topografix.com/GPX/1/1 http://www.topografix.com/GPX/1/1/gpx.xsd http://www.garmin.com/xmlschemas/GpxExtensions/v3 http://www.garmin.com/xmlschemas/GpxExtensionsv3.xsd http://www.garmin.com/xmlschemas/TrackPointExtension/v2 http://www.garmin.com/xmlschemas/TrackPointExtensionv2.xsd">
  <metadata>
    <name>Bar tour</name>
  </metadata>
  <trk>
    <name>Bar tour</name>
    <trkseg>
      <trkpt lat="55.768249" lon="37.598339"></trkpt>
      <trkpt lat="55.768308999999995" lon="37.598448000000005"></trkpt>