Function from

from(first?: number, step?: number): Generator<number>

Creates an infinite generator that yields a sequence of numbers starting from a given value. Similar to Python's range() function, but produces an infinite sequence.

Parameters

first: number = 0
The starting value (inclusive), defaults to 0
step: number = 1
The step value to increment by, defaults to 1

Returns Generator<number>

An infinite generator of numbers

Yields

A sequence of numbers, starting from first and incrementing by step

Example

// Generate numbers starting from 0 with default step of 1
const counter = from()
const first5 = Array.from({ length: 5 }, () => counter.next().value)
// Result: [0, 1, 2, 3, 4]

Example

// Generate numbers starting from 10 with step of 5
const byFives = from(10, 5)
const first4 = Array.from({ length: 4 }, () => byFives.next().value)
// Result: [10, 15, 20, 25]

Example

// Generate a decreasing sequence with negative step
const countdown = from(10, -1)
const first6 = Array.from({ length: 6 }, () => countdown.next().value)
// Result: [10, 9, 8, 7, 6, 5]

Function from

Parameters

Returns Generator<number>

Yields

Example

Example

Example

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