Function ContainsSubstringOnlyOnce

ContainsSubstringOnlyOnce(str: string, ...substrings: string[]): boolean
Determines whether each of the specified substrings appears exactly once in the given string.
Parameters
- str: string
  The string to search within.
- ...substrings: string[]
  One or more substrings to check for single occurrence in str.
Returns boolean
true if every substring appears exactly once in str, otherwise false.
Example
```
ContainsSubstringOnlyOnce("hello world", "hello"); // true
ContainsSubstringOnlyOnce("hello hello world", "hello"); // false
ContainsSubstringOnlyOnce("hello world", "hello", "world"); // true
ContainsSubstringOnlyOnce("hello world", "hello", "foo"); // false
```
Since
4.0.0

Version
2021-12-14
- Defined in string/ContainsSubstringOnlyOnce.ts:51