charCount

Counts how many times a specific character appears in a string.

Syntax

charCount(str: string, char: string): number

Parameters

Parameter	Type	Description
str	string	The string in which to count.
char	string	The character to count (must be a single-character string).

Returns

Type	Description
number	The number of occurrences of the character in the string.

Example

charCount("banana", "a"); // 3
charCount("abracadabra", "b"); // 2
charCount("teste", "z"); // 0

Notes

• Throws TypeError if str is not a string or if char is not a single-character string.
• The count is case-sensitive.

References

• MDN: String.prototype.length
• MDN: String.prototype.charAt()