python time a function code example

Example 1: python measure time

import time

start = time.time()
print("hello")
end = time.time()
print(end - start)

Example 2: Javascript measure function run time

var startTime = performance.now();

alert('Run some function here');

var endTime = performance.now();
var totalTime=endTime-startTime;// time took to run in milliseconds

alert('Total time:'+totalTime +'ms');

Example 3: python time a funciton

import time

start = time.time()
print("hello")
end = time.time()
print(end - start)

Example 4: python: measure time code

import time

# Calculate the power of two for a defined range of number
def power_two(my_range):
    return [x**2 for x in range(my_range)]
 
# Measure time
def measure_time(func):
    start = time.time()
    func()               # any specific function to measure
    end = time.time()
    print(end - start)  
    
measure_time(lambda: power_two(10000000)) # lambda permits to pass the argument of our function

Example 5: time function c++

#include <chrono> 
using namespace std::chrono; 

auto start = high_resolution_clock::now(); 

// perform function to be timed here...

auto stop = high_resolution_clock::now(); 
cout << duration_cast<microseconds>(stop - start).count() << endl;

Example 6: how to time python code

from timer import Timer
t = Timer()
t.start()
# Run stuff here.
t.stop()