Random String Generator

Generates a random string of a specified length using a set of characters that includes both uppercase and lowercase letters and numbers.

Technology Stack : re (regular expression library), math (math library), random (random number library), os (operating system library)

Code Type : Function

Code Difficulty : Intermediate

                
                    
import re
import math
import json
import random
import time
import datetime
import os

def generate_random_string(length, characters='abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'):
    if length <= 0:
        return ''
    result = ''.join(random.choice(characters) for _ in range(length))
    return result