generate

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2023-12-01

Creates a GeneratedSequence using the specified generator function and (optionally) length.

Signature

Lazy.generate = function(generatorFn, length) { /*...*/ }

Lazy.generate = function generate(generatorFn, length) {
  return new GeneratedSequence(generatorFn, length);
}

Name	Type(s)	Description
generatorFn	function(number):*	The function used to generate the sequence. This function accepts an index as a parameter and should return a value for that index in the resulting sequence.
length	number?	The length of the sequence, for sequences with a definite length.
returns	GeneratedSequence	The generated sequence.

Examples

var randomNumbers = Lazy.generate(Math.random);
var countingNumbers = Lazy.generate(function(i) { return i + 1; }, 5);

randomNumbers          // instanceof Lazy.GeneratedSequence
randomNumbers.length() // => undefined
countingNumbers          // sequence: [1, 2, 3, 4, 5]
countingNumbers.length() // => 5