range

The range function creates an array of numbers within a specified interval, with a defined step.

Syntax

range(start: number, end: number, step?: number): number[];

Parameters

Name	Type	Description
start	number	Start of range
end	number	End of range (exclusive)
step	number	Step between values (optional, default 1)

Returns

Type	Description
number[]	Array of numbers in the specified range

Examples

range(0, 5); // => [0, 1, 2, 3, 4]
range(1, 10, 2); // => [1, 3, 5, 7, 9]
range(5, 0, -1); // => [5, 4, 3, 2, 1]

Notes

• The end value is not included in the result.
• Throws an error if step is 0.
• Useful for generating numeric sequences.

References

• https://lodash.com/docs/4.17.15#range