loilo

Make Vue events bubble

Vue events don't bubble the component tree on their own. However when writing wrapper components this can be the desired behaviour.

This code registers a global bubble directive which allows to re-emit all given events:

Let's say we want to bubble events start, accelerate and brake of our component Car.

Without any help, we'd roughly have to do this:

antishok

What does NODE_ENV=production do?

Setting NODE_ENV=production causes these libraries and tools to behave as follows:

npm:

• install will not install devDependencies
• shrinkwrap will not install devDependencies
• prune will remove devDependencies

yarn:

dImrich

//Bend Three JS plane geometry with bezier curve
//Curved plane generation, bezier curve plane, 
function bendPlaneGeometry(planeGeometry, centerBendZ)
{
  var curve = new THREE.CubicBezierCurve3(
		planeGeometry.vertices[0],
		new THREE.Vector3(planeGeometry.parameters.width/2, 0, centerBendZ ),
		new THREE.Vector3(planeGeometry.parameters.width/2, 0, centerBendZ ),
		planeGeometry.vertices[(planeGeometry.vertices.length/2) - 1]
	);

theatlasroom

#!/bin/sh

# This is for an expressjs node app, it uses npm + bower packages and pm2 to start the app
# [pm2](https://github.com/Unitech/pm2)
# Assumes you've created a [bare git repo](https://git-scm.com/book/en/v2/Git-on-the-Server-Getting-Git-on-a-Server) with on your server with git init --bare

# Adapted from http://javascript.tutorialhorizon.com/2014/08/17/push-to-deploy-a-nodejs-application-using-git-hooks/
PORT=1337
APP_NAME="app-name"
APP_ROOT="/var/www/app"

mrded

var express = require('express'),
    request = require('request');

var app = express();  

// Forward all requests from /api to http://foo.com/api
app.use('/api', function(req, res) {
  req.pipe(request("http://foo.com/api" + req.url)).pipe(res);
});

CMCDragonkai

{-
  The comparison operators are non-associative and not composable.
  Thus it is illegal to write: 1 < 2 < 3
  The input types of < (Int) does not match the output type (Bool).
  1 < 2 < 3 can however be written in math notation, because it denotes:
  (1 < 2) && (2 < 3) or (1 < 2) ^ (2 < 3)
  It is however possible to create a new ternary operator that supports such a 
  notation!
-}

branneman

Better local require() paths for Node.js

Problem

When the directory structure of your Node.js application (not library!) has some depth, you end up with a lot of annoying relative paths in your require calls like:

const Article = require('../../../../app/models/article');

Those suck for maintenance and they're ugly.

Possible solutions

punund

var bases = require('bases');
var crypto = require('crypto');

// Returns a base-62 (alphanumeric only) string of the given length:
function randomStr(length) {
    // We generate a random number in a space at least as big as 62^length,
    // and if it's too big, we just retry. This is still statistically O(1)
    // since repeated probabilities less than one converge to zero. Hat-tip to
    // a Google interview for teaching me this technique! ;)

ricardobeat

function hangups (req, res, next){
    var reqd = domain.create()
    reqd.add(req)
    reqd.add(res)
    reqd.on('error', function (error) {
        if (error.code !== 'ECONNRESET') console.error(error, req.url)
        reqd.dispose()
    })
    next()
}

punund

  getImageSize = (image, cb) ->
    fromHex = (hex) -> parseInt "0x#{hex}", 16
    req = http.request image, (res) ->
      res.setEncoding 'hex'
      res.on 'error', (e) -> cb "getImageSize error (#{image}): " + e, null, image
      res.on 'data', (chunk) ->
        m = switch res.headers['content-type']
          when 'image/jpeg'
            chunk.match 'ffc0001108(....)(....)'
          when 'image/png'