Change WooCommerce Bookings "Check Availability" button text

gistfile1.php

//not sure what to do with this code snippet? See https://www.thathandsomebeardedguy.com/what-do-i-do-with-these-code-snippets/

add_filter( 'woocommerce_booking_single_check_availability_text', 'wooninja_booking_check_availability_text' );

function wooninja_booking_check_availability_text() {
	return "MY CUSTOM TEXT";
}

where to apply code?

not working when applied to themes function.php file

Works like a charm. Thanks!

Yes it works fine in the functions.php. Shwee-eet! Thanks!

Applied to functions.php and it works perfectly. Thank you!