Function containsIgnoreCase

containsIgnoreCase(str: string, search: string): boolean
Checks if a string contains a given substring, ignoring case.
Parameters
- str: string
  The string to search within.
- search: string
  The substring to search for.
Returns boolean
true if search is found in str (case-insensitive), otherwise false.
Since
1.1.0
Example
```
containsIgnoreCase("Hello World", "hello"); // true
containsIgnoreCase("Hello World", "WORLD"); // true
containsIgnoreCase("Hello World", "test");  // false
```
- Defined in string/containsIgnoreCase.ts:18