Eng:() Contains ()? (block)

The  Contains ? block is a List block and a Boolean block. The block checks if any items in the specified list are equal to the given textif at least one of them is, the block returns true; if none of them are, it returns false. The item must contain the exact text; for example, "abc" would not work if the item contained "abcde". This block is case-sensitive.

Example Uses
If an object must be checked if it is in a list or not, this block can be used.

Some common uses for the Contains ? block:
 * Scanning lists

if <[lunch v] contains [spinach]?> then say [Yuck! Spinach!] end


 * Checking if an item already exists before adding it to an inventory

if > then add [fan] to [collection v] else say [I already have a fan in my collection.] end


 * Checking if a word is in a list of words

if <[words v] contains [chocolate]?> then say [Chocolate!? I'm allergic to chocolate!] End


 * Making sure an item is in an inventory before performing a command.

if <[collection v] contains [fan]?> then broadcast [action v] else say [It's too far to reach the pile of sand on that platform.] end

Workaround
This block can be replicated with the following code:

set [count v] to [1] repeat until <<(count) > (length of [list v])> or <(item (count) of [list v]) = (thing)>> change [count v] by (1) end set [report v] to <(count) > (length of [list v])>

When it is needed,<(report) = [true]> is placed into the boolean insert.

Using the workaround gives either an advantage or a disadvantage: this block is case-sensitive, while the equals block is not.

Related Suggestion
Some Scratchers want a block that checks if a given string contains another string: . It would be in the operators category.