count

The count function returns the number of elements in an array or characters in a string.

Syntax

count(array: any[] | string): number;

Parameters

Name	Type	Description
array	any[] | string	Source array or string

Returns

Type	Description
number	Number of elements or characters

Examples

count([1, 2, 3]); // => 3
count("abc"); // => 3
count([]); // => 0

Notes

• Returns 0 for empty arrays or strings.
• Useful for size validation.

References

• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/length
• https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/String/length