range
range(
start,stop,step?):IterableIterator<number>
Defined in: packages/core/src/iterable/range.ts:23
Yields the arithmetic progression from start towards stop, exclusive.
Stands in for TC39’s Iterator.range, and follows it: start is required,
stop is exclusive, and a stop of Infinity (or -Infinity with a
negative step) yields forever. Nothing is materialised.
Each value is computed as start + step * index rather than accumulated, so
a fractional step does not drift — range(0, 1, 0.1) ends at 0.9, not at
0.9999999999999999.
Time complexity: O(1) to construct, O(1) per value.
Parameters
Section titled “Parameters”number
The first value, inclusive. Must be finite.
number
The bound to stop before, exclusive. May be infinite.
number = 1
How much to advance by. Must be finite and non-zero; a negative value counts down.
Returns
Section titled “Returns”IterableIterator<number>
An iterator over the progression. Empty when stop is already on
the far side of start.
Throws
Section titled “Throws”If start is not finite, stop is NaN, or step is
zero, NaN or infinite.