number contains(container, value, flags)
Returns 1 if the array, dictionary or text contains value.
Flags:
Flag | Description |
---|---|
"i" | Case-insensitive matching when comparing text (US-ASCII only) |
"iu" | Case-insensitive matching when comparing text (Unicode, preferred) |
"u" | Unicode-aware case folding |
"k" | Search for a matching dictionary entry key, not value |