randex

Generates random filename, username, email, name, full name, etc for test purposes.

Usage

Installation:

npm i randex

Strings:

• random
• fileName
• username
• email
• singleName
• fullName
• word

Numbers:

• number
• numberArray

Generic Type:

• array

Deeps:

• Customization
• Types

random

Basic function to construct random things.

import Randex from "randex";

// 3 english chars
Randex.random({
  set: "english",
  length: 3,
});
// or short:
Randex.random(["english", 3]);
// EFd

// 3 lower english chars
Randex.random({
  set: ["english", "lower"],
  length: 3,
});
// or short:
Randex.random([["english", "lower"], 3]);
// yhl

// min 1 and max 3 english chars
Randex.random({
  set: "english",
  length: [1, 3],
});
// or short:
Randex.random(["english", [1, 3]]);
// eR

// 3 number chars
Randex.random({
  set: "number",
  length: 3,
});
// or short:
Randex.random(["number", 3]);
// 643

// 3 chars from custom range
Randex.random({
  range: "abc123",
  length: 3,
});
// a21

// 3 english or number chars
Randex.random({
  set: ["english", "number"],
  length: 3,
});
// or short:
Randex.random([["english", "number"], 3]);
// x4d

// 4 chars: 2 english and 2 english or number
Randex.random(
  {
    set: "english",
    length: 2,
  },
  {
    set: ["english", "number"],
    length: 2,
  }
);
// or short:
Randex.random(["english", 2], [["english", "number"], 2]);
// Kb3b

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |set|RandexSet | Defined chars| |range|string| Range or custom chars | |length|RandexLength | Length of chars |

fileName

Randoms file name.

import Randex from "randex";

// default
Randex.fileName({
  extension: "txt",
});
// td1TX31eOB.txt

// defined extension
Randex.fileName({
  extension: "txt",
});
// or short:
Randex.fileName("txt");
// HkmOjqHC6.txt

// defined file name length and extension length
Randex.fileName({
  fileNameLength: [7, 10],
  extensionLength: 5,
});
// or short:
Randex.fileName([7, 10], 5);
// 1SJVkHSBjq.tejuw

// defined file name length and extension
Randex.fileName({
  fileNameLength: 8,
  extension: "xml",
});
// or short:
Randex.fileName(8, "xml");
// JyCsuN5kD.xml

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |fileNameLength|RandexLength | Length of file name (not including extension). Default: [3,10] | |extensionLength|RandexLength | Length of extension (not including file name) chars. Default: [2,5] | |extension| string| File extension. |

username

Randoms username.

import Randex from "randex";

// default
Randex.username();
// icvv81d1j

// with length 5 chars
Randex.username({ length: 5 });
// or short:
Randex.username(5);
// okmle

// with 2 min and 5 max chars
Randex.singleName({ length: [2, 5] });
// or short:
Randex.username([2, 5]);
// lkhs

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |length|RandexLength | Length of chars. Default: [6,10] |

randomEmail

Randoms an email.

import { randomEmail } from "randex";

// default
randomEmail();
// [email protected]

// defined prefix length
randomEmail({
  prefixLength: 8,
});
// or shot:
randomEmail(8);
// [email protected]

// defined prefix, low domain and hight domain length
randomEmail({
  prefixLength: 8,
  lowDomainLength: 4,
  hightDomainLength: 2,
});
// or shot:
randomEmail(8, 4, 2);
// [email protected]

// defined domain
randomEmail({
  domain: "test.com",
});
// or shot:
randomEmail("test.com");
// [email protected]

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |prefixLength|RandexLength | Length of email prefix (chars before @). Default: [6, 10] | |hightDomainLength|RandexLength | Length of hight domain part (example: test.com). Default: [1,6] | |lowDomainLength|RandexLength | Length of low domain part (example: test.com). Default: [4,2] | |domain| string| Defined domain. |

singleName

Randoms a name of the person, city, place, restaurant, ect.

import Randex from "randex";

// default
Randex.singleName();
// Ijb

// with length 5 chars
Randex.singleName({ length: 5 });
// or short:
Randex.singleName(5);
// Okmpj

// with 2 min and 5 max chars
Randex.singleName({ length: [2, 5] });
// or short:
Randex.singleName([2, 5]);
// Wslg

// name from french alphabet
Randex.singleName({ alphabet: "french" });
// or short:
Randex.singleName("french");
// Dbïœ

// name from french alphabet with length
Randex.singleName({ alphabet: "french", length: 10 });
// or short:
Randex.singleName("french", 10);
// Rsîrjhjôôw

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |length|RandexLength | Length of chars. Default: [2,10] | |alphabet|RandexAlphabet | Defined alphabet. Default: english |

randomFullName

Randoms a full name of the person.

import Randex from "randex";

// default
Randex.fullName();
// Eqaa Bfmotnq

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |firstLength|RandexLength | First name length of chars. Default: [2, 10] | |secondLength|RandexLength | Second name length of chars. Default: [2,10] | |alphabet|RandexAlphabet | Defined alphabet. Default: english |

word

Randoms a simple word.

import Randex from "randex";

// default
Randex.word();
// kpmld

// with length 5 chars
Randex.word({ length: 5 });
// or short:
Randex.word(5);
// imphs

// with 2 min and 5 max chars
Randex.word({ length: [2, 5] });
// or short:
Randex.word([2, 5]);
// kslg

// name from french alphabet
Randex.word({ alphabet: "french" });
// or short:
Randex.word("french");
// dbïœ

// name from french alphabet with length
Randex.word({ alphabet: "french", length: 10 });
// or short:
Randex.word("french", 10);
// rsîrjhjôôw

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |length|RandexLength | Length of chars. Default: [2,10] | |alphabet|RandexAlphabet | Defined alphabet. Default: english |

number

Generates random number from a range of numbers.

import Randex from "randex";

// Generates a number from a range: [0, 3] (includes 0 and 3).
Randex.number(3);

// Generates a number from a specified range: [3, 7].
Randex.number([3, 7]);

Options: | Name | Type| Description| | ------------------------ | ---- |------------ | |decimals| number | Number of decimal digits |

numberArray

Generates random array with values from a range.

import Randex from "randex";

// Generates an array (with length equals 2) with unique numbers from a range: [0, 3].
Randex.numberArray(3, 2);

// Generates an array (with length equals 3) with unique numbers from a range: [3, 7].
Randex.numberArray([3, 7], 3);

array

Generates random array with values from defined array.

import Randex from "randex";

// Generates an array (with length equals 2) with values picked from defined array as the first parameter.
Randex.array([1, 2, 3, 4], 2);
// [2, 4]
Randex.array(["1", "2", "3", "4"], 2);
// ["1", "3"]

Customization

random function is very flexible, there are many custom functions can be created.

There are examples how to create custom function for most common cases:

Randex.fileName

Randex.random([
  ["english", "number"],
  [3, 10],
]) +
  "." +
  Randex.random([
    ["english", "l"],
    [2, 5],
  ]);

Randex.username

Randex.random(
  ["english", "l"],
  [
    [["english", "l"], "number"],
    [5, 10],
  ]
);

Randex.email

Randex.random([
  [["english", "l"], "number"],
  [6, 10],
]) +
  "@" +
  Randex.random([
    ["english", "l"],
    [2, 4],
  ]) +
  "." +
  Randex.random([
    ["english", "l"],
    [1, 6],
  ]);

Randex.singleName

Randex.random(
  ["english", "u"],
  [
    ["english", "l"],
    [1, 10],
  ]
);

Randex.fullName

Randex.random(
  ["english", "u"],
  [
    ["english", "l"],
    [1, 10],
  ]
) +
  " " +
  Randex.random(
    ["english", "u"],
    [
      ["english", "l"],
      [1, 10],
    ]
  );

Types

RandexLength

Possible types:

number: strict length

[number, number]: an array of min and max length.

Example:

Randex.random({ set: "bit", length: 5 });
Randex.random({ set: "bit", length: [5, 10] });
// or short:
Randex.random(["bit", 5]);
Randex.random(["bit", [5, 10]]);

RandexSet

Possible types:

string: an alphabet - RandexAlphabet or a set of chars - RandexKit

[string, string]: the first item is - RandexAlphabet, the second item is - RandexCase

Example:

Randex.random({ set: "bit" });
Randex.random({ set: "spanish" });
Randex.random({ set: ["spanish", "lower"] });
// or short:
Randex.random("bit");
Randex.random("spanish");
Randex.random(["spanish", "l"]);

RandexAlphabet

An alphabet of chars

string values: english, french, spanish, russian.

Example:

Randex.random({ set: "spanish" });
// or short:
Randex.random("spanish");

RandexKit

A kit of chars

string values: hex, symbol, number, binary.

Example:

Randex.random({ set: "hex" });
// or short:
Randex.random("hex");

RandexCase

A case of alphabet

string values: upper, u,lower, l.

Example:

Randex.random({ set: ["spanish", "lower"] });
// or short:
Randex.random(["spanish", "l"]);