StrContains
Tests whether a string is found inside another string.
native int StrContains(const char[] str, const char[] substr, bool caseSensitive = true)
Parameters
const char[] str
String to search in.
const char[] substr
Substring to find inside the original string.
bool caseSensitive
If true (default), search is case sensitive.
If false, search is case insensitive.
Return Value
int -1 on failure (no match found). Any other value
indicates a position in the string where the match starts.