Length of

Block returns length of iterable sequence.

• string - returns length of string (number of characters)
• list - returns amount of elements in list
• dict - amount of keys in dict

If input value is not iterable returns -1 as it’s length.

XML representation of function_length block

<xml xmlns="http://www.w3.org/1999/xhtml">
  <block type="function_length">
    <value name="VALUE">
      <block type="text">
        <field name="TEXT">Value</field>
      </block>
    </value>
  </block>
</xml>

This block is used three times in the example:

• “set status_length” row: gets number of characters from variable “status”. Result is value “6”.
• “user_length” row: gets number of characters from “user” key in “item” dictionary. Result is value “13”.
• “if length of” row: gets number of characters from “user” key in “item” dictionary and if the value is greater or equal to “6”, user tag “long_username” is created.