random-utils-and-tools

Installation

npm i random-utils-and-tools

Get started

let random = new (require('random-utils-and-tools').Random)()

Usage

// Constants  
let digits          = random.digits; // Digits 0-9  
let specials        = random.specials; // Special characters  
let ascii_lowercase = random.ascii_lowercase; // Lowercase alphabet  
let ascii_uppercase = random.ascii_uppercase; // Uppercase alphabet  
let ascii_letters   = random.ascii_letters // Both lowercase and uppercase letters  
  

// Range
random.range(1, 100) 
// [1, 2, 3, ..., 99]

random.range(100) // return all integers between 0-99 
// [0, 1, 2, 3, ..., 99]

random.range(1, 100, 2) // returns all odd numbers between 1-100
// [1, 3, 5, 7, ..., 97, 99]

random.range(100, 1, -1) // return range 2-100 reversed
// [100, 99, 98, ..., 3, 2]

random.range(100, 1, -5)
// [100, 95, 90, ..., 10, 5]


  

// Random integer  
random.int(1, 10) // Random integer in range 1-10  
random.int(5) // Random integer in range 0-5  
  
  
// Random float  
random.float(1, 2) // Random float in range 1-2  
random.float(5) // Random float in range 0-5  
random.float() // Random float in range 0-1  
  
  
// Random boolean  
random.boolean() // true or false  
  
  
// Others  
random.randomAsciiLetters(length = 10) // Random 10 ascii letters as string  
random.randomSpecials(length = 10) // Random 10 special characters as string  
random.randomDigits(length = 10) // Random 10 digits as string  
random.randomAsciiLowercase(length = 10) // Random 10 lowercase ascii letters as string  
random.randomAsciiUppercase(length = 10) // Random 10 uppercase ascii letters as string  
  
  
  
// Random element from collection (string, array, etc.)  
random.choice([99, 42, 58, 19, 52]);  
random.choice("Hello, world");  
  
// Also can take few arguments  
random.choice(  
    [1, 2, 3, 4, 5],  
  "Hello, world"  
) // Chooses between each elements of all arguments  
  
  
  
// Few random elements from collection (Elements can repeat)  
random.chooseFew(  
    arr = [42, 94, 29, 10, 40], // Array  
  count = 3 // Choices count  
)  
  
// Few random elements without repeating elements  
random.chooseFew(  
    arr = [92, 58, 29, 104, 285, 10], // Array  
  count = 3, // Choice count,  
  repeat = false // Default is true so there can be repeating elements  
)  
// If repeat is false then count should be lesser or equal to arr.length  
  
  
  
// Random count of random elements from collection with no repeating items
random.chooseAny(  
    arr = [49, 4290, 63, 99, 29],  
  repeat = false,  
  limit = 2  
)  
// Limit is the maximum possible length of list the method returns  
// If repeat is true (default value), then limit can be any integer  
// If repeat is false, then limit must be between 0, arr.length



// Randomly shuffle list
random.shuffle(
    [1, 2, 3, 4, 5]
)

// Also takes few parameters and returns one list with all parameters together
random.shuffle(
    [1, 2, 3, 4, 5],
    "Hello, world",
[6, 7, 8, 9, 10]
)



// Get randomly shuffled list of numbers in range
random.randomRange(1, 100) // Is equal to random.shuffle(random.range(1, 100))
random.randomRange(100, 1, -1) // = random.shuffle(random.range(100, 1, -1))
random.randomRange(1000) // = random.shuffle(random.range(1000))