Node.js and PHP, Python character processing performance comparison _node.js

Test cases are divided into characters that use functions and classes to read a large string.

Test code

Node.js

Function

var fs = require ("FS");

var content = Fs.readfilesync ("page.html", {
 encoding: "Utf-8"
});

function chars (content) {
 var length = content.length;
 var pos = 0;
 while (pos + < length) {
  var chr = content[pos-1];
 }
}
var start = Date.now ();
Chars (content);
var end = Date.now ();
Console.log (End-start);

Class

var fs = require ("FS");

var content = Fs.readfilesync ("page.html", {
 encoding: "Utf-8"
});

var Chars = function (str) {
 this.str = str;
 This.length = str.length
 this.pos = 0;
}
Chars.prototype.run = function () {while
 (This.pos + + < This.length) {
  var chr = this.str[this.pos-1];
 }
}
var start = Date.now ();
var instance = new Chars (content);
Instance.run ();
var end = Date.now ();
Console.log (End-start);

Php

Function

<?php
function Chars ($content) {
 $length = strlen ($content);
 $pos = 0;
 while ($pos + + < $length) {
  $char = $content {$pos-1};}
}
$content = file_get_contents ("page.html");
$start = Microtime (true);
Chars ($content);
$end = Microtime (true);
Echo ($end-$start). "\ n";
? >

Class

<?php
class chars{public
 function __construct ($str) {
  $this->str = $str;
  $this->length = strlen ($STR);
  $this->pos = 0;
 }
 The public Function run () {while
  ($this->pos++ < $this->length) {
   $char = $this->str{$this->pos-1};
  }
 }
}
$content = file_get_contents ("page.html");
$start = Microtime (true);
$instance = new Chars ($content);
$instance->run ();
$end = Microtime (true);
Echo ($end-$start). "\ n";
? >

Python

Function

Import codecs
import time

def chars (content):
 length = len (content)
 pos = 0 while
 (POS < Length):
  char = content[pos]
  pos = pos + 1

f = codecs.open (' page.html ', encoding= ' utf-8 ')

content = f . Read ()

start = Time.time ()
chars (content) End
= Time.time ();

Print End-start

Class

Import codecs
import time

class Chars (): 
 def __init__ (self, str): 
  self.str = str
  self.length = Len ( str)
  Self.pos = 0

 def run (self): while
  (Self.pos < Self.length):
   char = Self.str[self.pos]
   Self.pos = Self.pos + 1

f = codecs.open (' page.html ', encoding= ' utf-8 ')

content = F.read ()

start = Time.tim E ()
instance = Chars (content)
Instance.run () End
= Time.time ();

Print (End-start)

Where the page.html file content is a length of text.

Test results

Language function class
node.js 0.022s 0.026s
PHP 0.35s 1.02s
Python 0.58s 1.50s