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<IfModule mod_headers.c>
Header set Connection keep-alive

# Cache-control headers
    # 2 HOURS
    #<filesMatch "*">
        Header set Cache-Control "max-age=7200, must-revalidate"
    #</filesMatch>

    # 480 weeks - 290304000

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# IPs distintas y peticiones
cat access.log | awk '{print $1}' | sort -n | uniq -c | sort -nr | head -30

# Peticiones al dia
zcat access.log-*.gz | awk '{print substr($4, 2, 11)}' | sort -n | uniq -c

# Total de peticiones sumadas de todos los dias
zcat access.log-*.gz | awk '{print substr($4, 2, 11)}' | sort -n | uniq -c awk '{ sum += $1 } END { print sum }'

# Numero de peticiones a paginas (sin contar imagenes etc)

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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.

Element

Box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
• elem.clientLeft, elem.clientTop, elem.clientWidth, elem.clientHeight
• elem.getClientRects(), elem.getBoundingClientRect()

raulmoyareyes

Object Calisthenics outlines 9 basic rules to apply when performing the exercise:

• One level of indentation per method.
• Don't use the ELSE keyword.
• Wrap all primitives and Strings in classes.
• First class collections.
• One dot per line.
• Don't abbreviate.
• Keep all classes less than 50 lines.
• No classes with more than two instance variables.

raulmoyareyes

class UserSettings {
  constructor(user) {
    this.user = user;
  }

  changeSettings(settings) {
    if (this.verifyCredentials()) {
      // ...
    }
  }

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class UserAuth {
  constructor(user) {
    this.user = user;
  }

  verifyCredentials() {
    // ...
  }
}

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class Pdf {
  constructor(name, size) {
    this.name = name;
    this.size = size;
  }

  // ...
}
class Png {
  constructor(name) {

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class Printable {
  function print() {
    // ...
  }
}
class Pdf extends Printable {
  constructor(name, size) {
    super();
    this.name = name;
    this.size = size;

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class Rectangle {
  constructor() {
    this.width = 0;
    this.height = 0;
  }

  setWidth(width) {
    this.width = width;
  }

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class Rectangle {
  constructor(width, height) {
    this.width = width;
    this.height = height;
  }

  getArea() {
    return this.width * this.height;
  }
}