jevakallio

TL;DR: If you want to see me perform a spoken word poem about JavaScript in front of 1000 people (and on video), please ⭐ star this gist. If you're on mobile, you'll need to request desktop site.

JavaScript Slam Poetry

jlongster

const t = require("tcomb");
// imstruct is a tcomb type builder that internally builds an
// Immutable.Record object, but applies tcomb's type system to it
const imstruct = require("../util/imstruct");

const Person = imstruct({
  name: t.String,
  age: t.Number
});

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

pyrtsa

function range(n) {
    return Array.apply(null, Array(n)).map(function (_, i) { return i })
}

function ntuples(n, xs) {
    return range(Math.ceil(xs.length / n)).map(function (i) {
        return xs.slice(i * n, i * n + n)
    })
}

pyrtsa

function range(/* [begin,] end[, step] */) {
  var begin = arguments.length > 1 ? arguments[0] : 0,
      end = arguments.length > 1 ? arguments[1] : arguments[0],
      step = arguments[2] || 1,
      n = Math.max(0, Math.ceil((end - begin) / step))
  return Array.apply(null, Array(n)).map(function (_, i) {
    return begin + step * i
  })
}

pyrtsa

// Public domain.
// Attribution welcome, but not required. -- Pyry Jahkola.


// What's the point in all this? To get the equivalent of CoffeeScript's
// (?.) operator into vanilla JavaScript.


// get(x, key1, key2, ...) -- Get the result of x[key1][key2]..., or undefined.
// Will short circuit if a key is not found.

gcatlin

brew update
brew versions FORMULA
cd `brew --prefix`
git checkout HASH Library/Formula/FORMULA.rb  # use output of "brew versions"
brew install FORMULA
brew switch FORMULA VERSION
git checkout -- Library/Formula/FORMULA.rb    # reset formula

## Example: Using Subversion 1.6.17
#

scottjehl

/*
  * Normalized hide address bar for iOS & Android
  * (c) Scott Jehl, scottjehl.com
  * MIT License
*/
(function( win ){
	var doc = win.document;
	
	// If there's a hash, or addEventListener is undefined, stop here
	if( !location.hash && win.addEventListener ){

akheron

def eq_diff(a, b):
    import json, difflib
    from datetime import datetime

    if a == b:
        return

    class DatetimeEncoder(json.JSONEncoder):
        def default(self, o):
            if isinstance(o, datetime):

gnomet

CREATE DATABASE sharetribe_test CHARACTER SET utf8 COLLATE utf8_general_ci;
CREATE DATABASE sharetribe_development CHARACTER SET utf8 COLLATE utf8_general_ci; 
CREATE DATABASE sharetribe_production CHARACTER SET utf8 COLLATE utf8_general_ci;

GRANT all privileges ON sharetribe_development.* TO 'sharetribe'@'localhost' IDENTIFIED BY 'put_a_password_here';
GRANT all privileges ON sharetribe_production.* TO 'sharetribe'@'localhost' IDENTIFIED BY 'put_a_password_here';
GRANT all privileges ON sharetribe_test.* TO 'sharetribe'@'localhost' IDENTIFIED BY 'put_a_password_here';