myshov

console.log(1);
(_ => console.log(2))();
eval('console.log(3);');
console.log.call(null, 4);
console.log.apply(null, [5]);
new Function('console.log(6)')();
Reflect.apply(console.log, null, [7])
Reflect.construct(function(){console.log(8)}, []);
Function.prototype.apply.call(console.log, null, [9]);
Function.prototype.call.call(console.log, null, 10);

nepsilon

Speed is a feature: 10 tips for faster browser networking

1. Minimize TCP connections

Ensure the web server uses Keep-Alive headers.

2. Reduce DNS look-ups

DNS look-ups are the first thing blocking your HTTP requests.

JoeNoPhoto

const addCounter = (list) => {
  return [...list, 0];
};

const removeCounter = (list, index) => {\
  return [
    ...list.slice(0, index),
    ...list.slice(index + 1)
  ];
};

nepsilon

Better using Crontab

Here are a few tips to get more out of Cron:

• Test your scripts using Cron limited environment
• Have it send you report to another email than root@locahost
• Make it use another shell.

# Cron only provides a limited environment.
# To simulate it to test run your scripts

LukyVj

// Background mixin 
@mixin strips($color, $angle){
  $color: saturate(lighten($color, 2%), 10%);
  background: $color 
  linear-gradient($angle, $color 0%, $color 10%,
  mix(black, $color, 5%) 10%, mix(black, $color, 5%) 20%,
  mix(black, $color, 12%) 19%, mix(black, $color, 10%) 21%, // Thin line between gradient
  mix(black, $color, 10%) 20%, mix(black, $color, 10%) 30%,
  mix(black, $color, 17%) 29%, mix(black, $color, 15%) 31%, // Thin line between gradient      
  mix(black, $color, 15%) 30%, mix(black, $color, 15%) 40%,

nucliweb

10 JavaScript Terms You Should Know

From currying to closures there are quite a number of special words used in JavaScript. These will not only help you increase your vocabulary but also better understand JavaScript. Special terms are normally found in documentation and technical articles. But some of them like closures are pretty standard things to know about. Knowing what the word itself means can help you know the concept it's named for better.

1. Arity
2. Anonymous
3. Closure
4. Currying
5. Hoisting
6. Mutation

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

aarongarciah

/* WebKit browsers */
::-webkit-input-placeholder {
    color:    rgba(#fff, .2);
}
/* Mozilla Firefox 4 to 18 */
:-moz-placeholder {
    color:    rgba(#fff, .2);
}
/* Mozilla Firefox 19+ */
::-moz-placeholder { 

nucliweb

#Selectores CSS

Los 30 selectores CSS que debes memorizar ( Un artículo de tutsplus.com )

#1. *

 * {

ryanflorence

Folder Structure

Please note

While this gist has been shared and followed for years, I regret not giving more background. It was originally a gist for the engineering org I was in, not a "general suggestion" for any React app.

Typically I avoid folders altogether. Heck, I even avoid new files. If I can build an app with one 2000 line file I will. New files and folders are a pain.