Random Helpers

Random Helpers provides random helper functions.

Installation

npm install random-helpers

Example

var randomHelpers = require("random-helpers");
 
console.log('Coin flip:');
if (randomHelpers.randomBoolean()) console.log('Heads');
else console.log('Tails');

Usage

randomHelpers.randomArraySubset(array)

Returns a subset of array consisting of a random combination of sub-elements.

Parameters:

Parameter	Type	Description
array	array	The array to generate a subset from

randomHelpers.randomBoolean()

Generates a random boolean.

Parameters: None

randomHelpers.randomIndex(array)

Generates a random integer in the range [0, array.length).

Parameters:

Parameter	Type	Description
array	array	The array to generate an index from

randomHelpers.randomIntegerInclusive(min, max)

Generates a random integer in the range [min, max].

Parameters:

Parameter	Type	Description
min	integer	The minimum integer value to generate
max	integer	The maximum integer value to generate

randomHelpers.randomItem(array)

Returns a random item from array.

Parameters:

Parameter	Type	Description
array	array	The array to return an item from

randomHelpers.randomNumber(min, max)

Returns a random number in the range [min, max).

Parameters:

Parameter	Type	Description
min	number	The minimum number value to generate
max	number	The maximum number value to generate

randomHelpers.randomVariable()

Returns a random variable, of type boolean, null, undefined, number, string, function, or object. If the variable is of type object, it will either be an array, or plain object.

Parameters: None

randomHelpers.randomVariableExcluding(typesToExclude)

Returns a random variable as in randomHelpers.randomVariable, but will not return a variable with a type specified in typesToExclude.

Parameters:

Parameter	Type	Description
typesToExclude	string or array of strings	The data types that the random variable should not be. Valid types include boolean, null, undefined, number, string, function, object, array, and plainObject. If typesToExclude includes object, then array and plainObject are both implicitly excluded. If typesToExclude is undefined, then no data types will be excluded.