lega911

import timeit
import threading
 
def lf(lst):
    for i in range(10000):
        lst.append(i)

def f1():
    lst = []
    lf(lst)

lega911

import timeit
import threading
 
def lf(lst):
    for i in range(10000):
        lst.append(i)

def f1():
    lst = []
    lf(lst)

lega911

timeit = function(fn) {
    var a = (new Date()).valueOf();
    fn();
    console.log((new Date()).valueOf() - a);
}

this.renderWithJS = function() {
    timeit(function() {
        var d = ['<ul class="list-group">'];
        var i, user;